Watch out for the spinning fire blades as you work your way up the colored ramp to the thwomp.
Run under the Thwomp when he rises off the ground, but watch out for the flamethrower just before. Now step on the green platform just beyond and ride it to the ceiling.
As the Luma puts it, the gravity's "all out of whack" here. The arrows along the wall point to which way the gravity is pulling; so if you enter that portion get ready to be pulled in that direction.
Start off by heading right and jumping at the coins to be pulled to the ceiling. Now leap over the spinning flames and jump at the next set of coins only when a platform stops below, as you'll be pulled to it. Now ride the platform until it comes to a stop again and leap through the coins to the ceiling.
Now quickly leap over the flames on the right and run under the Thwomp as soon as you can (otherwise the spinning flames will nail you). Now step on the nearby yellow platform to ride it to the next section.
Position Mario between the spinning flames and follow them slowly to the top side.
1-Up: After riding the yellow platform to the spinning flames, carefully jump around this circular platform clockwise for a 1-Up.
Run under the Thwomp and quickly dash past the three flamethrowers as soon as the fire subsides. Now ride the platform beyond up a level and carefully run past more spinning flames to a checkerboard floor, where you'll meet with Bowser.
Bowser will spit balls of fire at the walkway, destroying it. Quickly dash along it before it collapses, but make sure to grab the power-up Mushroom in the crystal at the first bend. When all is said and done, you'll have to take Bowser on Mano-a-Mario.
Boss: Bowser
This battle takes place on a giant sphere, and features what is some of the coolest music in the game, so enjoy it while it lasts.
Bower can't be attacked directly, well, not at first. So focus on avoiding his three main attacks: Fireballs, energy waves, and jump attacks. Every time Bowser lands from a jump, a least one energy wave will emit from him and continue around the entire globe. Try to jump over these while running at them, to insure you clear it completely.
Speaking of which, you'll have to use Bowser's ground pound attack against him to deal damage. Whenever Bowser spins in the air, that indicates he's going to try and land on you with a ground-pound. Quickly run to any of the several blue domes on the planet and watch for Bowser's shadow to appear over it; now quickly get out of the way while Bowser lands right on it, catching his tail on fire. This is his weakpoint.
When Bowser's tail on fire, he'll run around the globe in desperation trying to fan it out. Now here's the thing; Bowser's fast, so you won't be able to chase him down from behind. Instead, turn around and charge at him head-on. As soon as Bowser sees you, he'll turn around and run in the opposite direction - this is your chance to attack. As soon as Bowser's tail turns toward you, damage it with a spin attack to force him on his back, stunning him.
With Bowser stunned on his back, simply run up to him and perform a spin attack for the first hit. This is really easy the first time, as he stays in one place. However, for the 2nd and 3rd hits, he'll actually slide around the arena on his back - run around the globe in the opposite direction to intercept him.
After three hits, Bowser will admit defeat.
Bowser's Galaxy Reactor: The Fate of the Universe
Planet #1
The spotlights have their own gravitational pull, so stand in the light and follow it up the wall. Cross from one spotlight to the next once they're touching, but watch out for the spinning fire sticks.
After the Dry Bones, follow a few more spotlights up the tower to an anti-gravity field that'll pull you to a lava planet.
Planet #2
The platforms tumble as soon as you step on them, so you'll have to move fast. Jump from one to the next until you reach the large rotating black platform. Run along it carefully, and avoid jumping (so you don't hit a fire ball) to another set of platforms you must leap across quickly to another gravitation field.
Planet #3
The ice platforms here only appear when Mario gets close, however, unlike in Space Junk Galaxy, they'll break apart after several seconds, so time again is of the essence. Just follow the path and skip the 1-Ups unless you really need them. Another gravitational field awaits at the end.
Planet #4
Run across the three spinning platform around the flames. Watch out for another flame-set beyond (walk between the branches), then head right on the moving walkway up to some platforms, leading to another gravitational field.
Appearing Platforms
Like before, the platforms here only appear when you get close, but be careful as they'll disappear after several seconds and won't reappear, meaning what was once solid ground may now be a fall to your death.
Head right, then wall jump up the column that appears. Head left at the top, then wall-jump up a second column to a crazy gravity switching area.
Run along the ceiling past the first fire-stick, then jump to land on the walkway that appears below. Now just stay on the ground level (so avoid jumping!) and pass the fire-sticks as they swing by to reach the final gravitational field, leading to a large fiery cylinder.
Planet #5
A pair of Bullet Bill launchers ahead can make this portion difficult. Leap across the platforms when clear, but seek cover behind one of the Bowser statues for cover as soon as a bullet Bill gets close.
After crossing to the launchers, head right under a Thwomp and follow the walkway up to another set of platforms. Wait here behind a Bowser statue and wait for the Bullet Bills to cross by, then quickly leap across the platforms to one of the large floating structures and ride it around to a solid platform on the other side.
Wait to the side for the huge Bullet Bill to fly by, then quickly leap back across the floating platform to another green structure and ride it back around to the opposite side.
Leap across several more platforms and seek cover by either Bowser statue and wait for another giant Bullet Bill to fly past. Once it has, leap across three more green structures to a ledge on either side. Follow this to the Launch Star on the walkway.
Planet #6
Jump up the staircase, but don't forget to grab the power-up mushroom from a ledge on the left, halfway up.
Boss: Bowser
It's time to battle Bowser for the last time. Or should we say, the last three times. However, while there may be three parts to this battle, none of them are particularly tough.
Part 1:
Bowser will roll around in a boulder, in an effort to squash you. Avoid being run over, but perform a spin attack as soon as his exposed head is about to make contact with you. This will knock him out of the boulder and onto his back, where he'll now slide around the planet helplessly. Like in prior fights, wait for him to come back around then perform another spin attack to cause him to slide even faster in the opposite direct. Give him one more spin-attack thwack when he comes back around to enter the second portion of this battle.
Part 2:
This is almost identical to before, except now Bowser will roll around inside a spiky shell, and will launch several additional attacks, such as fireballs. However, unlike before, you can't spin attack his shell - instead, you'll have to spin attack one of the green bulb plants into him. This can be done at anytime, but is generally easier when he's standing still. After doing do, he'll slide around in his back, like usual. Spin attack when he comes sliding on to deal some pain, then repeat that once more to enter phase 3.
Part 3:
Okay, you've done this before…twice, even. Lure Bowser to drop onto any of the Blue domes when he performs his ground pound attack to ignite his tail on fire. Now run around the planet in the opposite direction as Bowser to face him head-on. When he turns around upon seeing you, spin attack his tail to send him reeling onto his back, sliding around the planet. Wait for him to come back around and spin attack him to deal some damage. Repeat this once more to best him once and for all (well, until the next Mario game, at least).
The spotlights have their own gravitational pull, so stand in the light and follow it up the wall. Cross from one spotlight to the next once they're touching, but watch out for the spinning fire sticks.
After the Dry Bones, follow a few more spotlights up the tower to an anti-gravity field that'll pull you to a lava planet.
Planet #2
The platforms tumble as soon as you step on them, so you'll have to move fast. Jump from one to the next until you reach the large rotating black platform. Run along it carefully, and avoid jumping (so you don't hit a fire ball) to another set of platforms you must leap across quickly to another gravitation field.
Planet #3
The ice platforms here only appear when Mario gets close, however, unlike in Space Junk Galaxy, they'll break apart after several seconds, so time again is of the essence. Just follow the path and skip the 1-Ups unless you really need them. Another gravitational field awaits at the end.
Planet #4
Run across the three spinning platform around the flames. Watch out for another flame-set beyond (walk between the branches), then head right on the moving walkway up to some platforms, leading to another gravitational field.
Appearing Platforms
Like before, the platforms here only appear when you get close, but be careful as they'll disappear after several seconds and won't reappear, meaning what was once solid ground may now be a fall to your death.
Head right, then wall jump up the column that appears. Head left at the top, then wall-jump up a second column to a crazy gravity switching area.
Run along the ceiling past the first fire-stick, then jump to land on the walkway that appears below. Now just stay on the ground level (so avoid jumping!) and pass the fire-sticks as they swing by to reach the final gravitational field, leading to a large fiery cylinder.
Planet #5
A pair of Bullet Bill launchers ahead can make this portion difficult. Leap across the platforms when clear, but seek cover behind one of the Bowser statues for cover as soon as a bullet Bill gets close.
After crossing to the launchers, head right under a Thwomp and follow the walkway up to another set of platforms. Wait here behind a Bowser statue and wait for the Bullet Bills to cross by, then quickly leap across the platforms to one of the large floating structures and ride it around to a solid platform on the other side.
Wait to the side for the huge Bullet Bill to fly by, then quickly leap back across the floating platform to another green structure and ride it back around to the opposite side.
Leap across several more platforms and seek cover by either Bowser statue and wait for another giant Bullet Bill to fly past. Once it has, leap across three more green structures to a ledge on either side. Follow this to the Launch Star on the walkway.
Planet #6
Jump up the staircase, but don't forget to grab the power-up mushroom from a ledge on the left, halfway up.
Boss: Bowser
It's time to battle Bowser for the last time. Or should we say, the last three times. However, while there may be three parts to this battle, none of them are particularly tough.
Part 1:
Bowser will roll around in a boulder, in an effort to squash you. Avoid being run over, but perform a spin attack as soon as his exposed head is about to make contact with you. This will knock him out of the boulder and onto his back, where he'll now slide around the planet helplessly. Like in prior fights, wait for him to come back around then perform another spin attack to cause him to slide even faster in the opposite direct. Give him one more spin-attack thwack when he comes back around to enter the second portion of this battle.
Part 2:
This is almost identical to before, except now Bowser will roll around inside a spiky shell, and will launch several additional attacks, such as fireballs. However, unlike before, you can't spin attack his shell - instead, you'll have to spin attack one of the green bulb plants into him. This can be done at anytime, but is generally easier when he's standing still. After doing do, he'll slide around in his back, like usual. Spin attack when he comes sliding on to deal some pain, then repeat that once more to enter phase 3.
Part 3:
Okay, you've done this before…twice, even. Lure Bowser to drop onto any of the Blue domes when he performs his ground pound attack to ignite his tail on fire. Now run around the planet in the opposite direction as Bowser to face him head-on. When he turns around upon seeing you, spin attack his tail to send him reeling onto his back, sliding around the planet. Wait for him to come back around and spin attack him to deal some damage. Repeat this once more to best him once and for all (well, until the next Mario game, at least).
Bowser's Dark Matter Plant: Darkness on the Horizon
The purplish-black liquid will kill you upon impact, so try not to land in it! Use the moving yellow platforms to climb up this first section. While you can jump from one to the next, it's better to wait for them to line up, then run across.
Around the corner are three spinning cylinders. Run across them one at a time when they line up. Alternatively, you can bypass this section completely by long-jumping and performing a spin attack at the end.
Head right into the multi-gravity section, and jump into the pink section to pull Mario to the ceiling. Jump onto the yellow block and position Mario anywhere on the left side, then ride it into the green section.
Note: If you fall off the yellow block, you can backflip onto a block near the bottom which you can use to jump back to the yellow platform.
After the block enters the green section, get ready to leap to a platform above when it moves close and ride it to another yellow block.
Position Mario in the corner of the block and ride it into the blue section, then leap to the platforms when the block comes to a stop.
Climb the pole to the floor above, and jump off carefully to avoid the dark matter holes that move around the platform. Now you'll have to use the moving pink platforms to cross the gap, however, you'll have to avoid the subspace holes that are revealed as they move. We suggest standing on either of the two bottom platforms first, as they only have one hole each (as opposed to two on top), then work your way to the top one after setting foot on the second set of platforms.
After crossing, use the yellow platforms to climb up the dark matter section, but watch out for some more subspace holes on the left, then the right.
Follow the path to the building with the multi-gravity sections. Now to make it through this section alive, you'll have to position Mario on the appropriate side of each block to avoid being pulled into the dark matter - you'll see what we mean.
Start off by jumping onto the blue platform and riding it down to the purple, T-shaped block and leap to it. After moving into the blue section, jump onto the gray "+" shaped block and stand on its left side (ideally the bottom-left corner) as you move into the green section.
When in the green section, make sure you position Mario in the bottom-left corner before the block rolls into the pink section. Subsequently, move Mario to the bottom-right corner before the block moves into the gray section.
In the gray section, move up along the right side of the block to the yellow L-Shaped block. Position Mario in the corner before it moves into the light blue portion, then leap to the nearby platform. Yes, freedom at last!
Catch a ride on the brown platform up a level, then destroy the crystals on the next two platforms to free the Lumas, who will create stairwells you can then use to climb up to Bowser. But don't forget to grab the Power-Up mushroom encased in crystal near the second Luma.
Boss: Bowser
This battle plays out just like the first time you fought Bowser, except now he's faster, and slightly tougher.
Bower can't be attacked directly, well, not at first. So focus on avoiding his three main attacks: Fireballs, energy waves, and jump attacks. Every time Bowser lands from a jump, a least one energy wave will emit from him and continue around the entire globe. Try to jump over these while running at them, to insure you clear it completely.
Speaking of which, you'll have to use Bowser's ground pound attack against him to deal damage. Whenever Bowser spins in the air, that indicates he's going to try and land on you with a ground-pound. Quickly run to any of the several blue domes on the planet and watch for Bowser's shadow to appear over it; now quickly get out of the way while Bowser lands right on it, catching his tail on fire. This is his weakpoint.
When Bowser's tail on fire, he'll run around the globe in desperation trying to fan it out. Now here's the thing; Bowser's fast, so you won't be able to chase him down from behind. Instead, turn around and charge at him head-on. As soon as Bowser sees you, he'll turn around and run in the opposite direction - this is your chance to attack. As soon as Bowser's tail turns toward you, damage it with a spin attack to force him on his back, stunning him.
With Bowser stunned on his back, simply run up to him and perform a spin attack for the first hit. This is really easy the first time, as he stays in one place. However, for the 2nd and 3rd hits, he'll actually slide around the arena on his back - run around the globe in the opposite direction to intercept him.
After three hits, Bowser will admit defeat.
Around the corner are three spinning cylinders. Run across them one at a time when they line up. Alternatively, you can bypass this section completely by long-jumping and performing a spin attack at the end.
Head right into the multi-gravity section, and jump into the pink section to pull Mario to the ceiling. Jump onto the yellow block and position Mario anywhere on the left side, then ride it into the green section.
Note: If you fall off the yellow block, you can backflip onto a block near the bottom which you can use to jump back to the yellow platform.
After the block enters the green section, get ready to leap to a platform above when it moves close and ride it to another yellow block.
Position Mario in the corner of the block and ride it into the blue section, then leap to the platforms when the block comes to a stop.
Climb the pole to the floor above, and jump off carefully to avoid the dark matter holes that move around the platform. Now you'll have to use the moving pink platforms to cross the gap, however, you'll have to avoid the subspace holes that are revealed as they move. We suggest standing on either of the two bottom platforms first, as they only have one hole each (as opposed to two on top), then work your way to the top one after setting foot on the second set of platforms.
After crossing, use the yellow platforms to climb up the dark matter section, but watch out for some more subspace holes on the left, then the right.
Follow the path to the building with the multi-gravity sections. Now to make it through this section alive, you'll have to position Mario on the appropriate side of each block to avoid being pulled into the dark matter - you'll see what we mean.
Start off by jumping onto the blue platform and riding it down to the purple, T-shaped block and leap to it. After moving into the blue section, jump onto the gray "+" shaped block and stand on its left side (ideally the bottom-left corner) as you move into the green section.
When in the green section, make sure you position Mario in the bottom-left corner before the block rolls into the pink section. Subsequently, move Mario to the bottom-right corner before the block moves into the gray section.
In the gray section, move up along the right side of the block to the yellow L-Shaped block. Position Mario in the corner before it moves into the light blue portion, then leap to the nearby platform. Yes, freedom at last!
Catch a ride on the brown platform up a level, then destroy the crystals on the next two platforms to free the Lumas, who will create stairwells you can then use to climb up to Bowser. But don't forget to grab the Power-Up mushroom encased in crystal near the second Luma.
Boss: Bowser
This battle plays out just like the first time you fought Bowser, except now he's faster, and slightly tougher.
Bower can't be attacked directly, well, not at first. So focus on avoiding his three main attacks: Fireballs, energy waves, and jump attacks. Every time Bowser lands from a jump, a least one energy wave will emit from him and continue around the entire globe. Try to jump over these while running at them, to insure you clear it completely.
Speaking of which, you'll have to use Bowser's ground pound attack against him to deal damage. Whenever Bowser spins in the air, that indicates he's going to try and land on you with a ground-pound. Quickly run to any of the several blue domes on the planet and watch for Bowser's shadow to appear over it; now quickly get out of the way while Bowser lands right on it, catching his tail on fire. This is his weakpoint.
When Bowser's tail on fire, he'll run around the globe in desperation trying to fan it out. Now here's the thing; Bowser's fast, so you won't be able to chase him down from behind. Instead, turn around and charge at him head-on. As soon as Bowser sees you, he'll turn around and run in the opposite direction - this is your chance to attack. As soon as Bowser's tail turns toward you, damage it with a spin attack to force him on his back, stunning him.
With Bowser stunned on his back, simply run up to him and perform a spin attack for the first hit. This is really easy the first time, as he stays in one place. However, for the 2nd and 3rd hits, he'll actually slide around the arena on his back - run around the globe in the opposite direction to intercept him.
After three hits, Bowser will admit defeat.
Bowser Jr's Robot Reactor Galaxy: Megaleg's Moon
Planet #1
The Launch Star is trapped in a glass cage ahead. To free it, you'll have to direct one of the nearby Bullet Bills cage into the cage to break it. Look for the Bullet Bill launcher on the exact opposite side of the planet. Wait for a Bullet Bill to launch then catch its attention to make it follow you (Bill's eyes will turn red when he's tracking you). Now quickly dart to the other side of the planet and direct him into the glass cage. To avoid being hit, either get behind the cage (forcing the Bullet Bill into it), or perform a back flip in front of hit just before the Bullet Bill hits. Now launch from the Launch Star to the second planet, where the boss lurks.
Planet #2
Boss: Megaleg
This giant tri-pod like creature isn't so much a boss, as it is a giant moving level. Navigate to one of its three legs after it touches down (but be careful that you don't get stomped!), then run up its leg. Jump over or run between the three bullet bills, then cross over the spinning gears (try to cross them by staying on their highest sections) and continue to the cage at the peak of its head.
Here you'll find the Grand Star inside a small cage, contained within a much larger one. Like before, lure one of the nearby Bullet Bills into the first cage to shatter it, getting you one step closer to the star. However, a fence will rise from the ground to block it from attack.
As you've likely guessed, you'll have to destroy part of the fence, then lure another Bullet Bill through the busted section and into the cage containing the Grand Star. However, what you may not realize is that the fence regenerates after several seconds, so you have to move fast. Ideally, try to get two or more Bullet Bills following you, spaced a few seconds apart. That way, you can direct the 2nd Bullet Bill into the cage as soon as the fence is destroyed.
The Launch Star is trapped in a glass cage ahead. To free it, you'll have to direct one of the nearby Bullet Bills cage into the cage to break it. Look for the Bullet Bill launcher on the exact opposite side of the planet. Wait for a Bullet Bill to launch then catch its attention to make it follow you (Bill's eyes will turn red when he's tracking you). Now quickly dart to the other side of the planet and direct him into the glass cage. To avoid being hit, either get behind the cage (forcing the Bullet Bill into it), or perform a back flip in front of hit just before the Bullet Bill hits. Now launch from the Launch Star to the second planet, where the boss lurks.
Planet #2
Boss: Megaleg
This giant tri-pod like creature isn't so much a boss, as it is a giant moving level. Navigate to one of its three legs after it touches down (but be careful that you don't get stomped!), then run up its leg. Jump over or run between the three bullet bills, then cross over the spinning gears (try to cross them by staying on their highest sections) and continue to the cage at the peak of its head.
Here you'll find the Grand Star inside a small cage, contained within a much larger one. Like before, lure one of the nearby Bullet Bills into the first cage to shatter it, getting you one step closer to the star. However, a fence will rise from the ground to block it from attack.
As you've likely guessed, you'll have to destroy part of the fence, then lure another Bullet Bill through the busted section and into the cage containing the Grand Star. However, what you may not realize is that the fence regenerates after several seconds, so you have to move fast. Ideally, try to get two or more Bullet Bills following you, spaced a few seconds apart. That way, you can direct the 2nd Bullet Bill into the cage as soon as the fence is destroyed.
Bowser Jr's Lava Reactor: King Kaliente's Spicy Return
Planet #1
You start right next to a Launch Star encased in a glass cage. To free it, you'll have to lure a Bullet Bill from the other side of the back to the cage. It's easy to get lost, so we've come up with the most direct path to get it done.
Stand to the left of the caged Launch Star, then long-jump over the gap to the land strip.
After crossing the gap, simply follow the left edge up to the Bullet Bill launcher. Catch the attention of one of them, then run back down the way you just came and long jump back over to cage. Now quickly run behind or on top of the cage to force the Bullet Bill to ram into it, freeing the Launch Star.
Planet #2
The platforms will sink into the lava if you stand on them too long, so you gotta move fast (or keep jumping). Grab the Power-Up mushroom from the lava platform on the left, then continue to the far edge to deal with the two melon-spitting enemies. Kill them by rebounding the melons back at them with a spin attack, then use the Launch Star that appears.
Boss: King Kaliente
King Kaliente is back and has learned a few new tricks too. Thankfully, his weakness is the same: just spin attack the melons he spits back at him to deal damage. Like before, a mere 3 hits will get the job done. However, this time the battle takes place on a series of floating platforms, which means you can't stand in one place for too long, otherwise you'll meet a fiery demise. So either stay on the move, or jump in place to avoid sinking into the lava.
Aside from that, the King will launch a trio of flaming rocks between attacks which can easily be side-stepped. However, keep an eye out for the blue flames that roam the arena. Also, after the second hit, fireballs will rain in from the sky - as long as you stay away from the edge of the platforms, they can't harm you.
You start right next to a Launch Star encased in a glass cage. To free it, you'll have to lure a Bullet Bill from the other side of the back to the cage. It's easy to get lost, so we've come up with the most direct path to get it done.
Stand to the left of the caged Launch Star, then long-jump over the gap to the land strip.
After crossing the gap, simply follow the left edge up to the Bullet Bill launcher. Catch the attention of one of them, then run back down the way you just came and long jump back over to cage. Now quickly run behind or on top of the cage to force the Bullet Bill to ram into it, freeing the Launch Star.
Planet #2
The platforms will sink into the lava if you stand on them too long, so you gotta move fast (or keep jumping). Grab the Power-Up mushroom from the lava platform on the left, then continue to the far edge to deal with the two melon-spitting enemies. Kill them by rebounding the melons back at them with a spin attack, then use the Launch Star that appears.
Boss: King Kaliente
King Kaliente is back and has learned a few new tricks too. Thankfully, his weakness is the same: just spin attack the melons he spits back at him to deal damage. Like before, a mere 3 hits will get the job done. However, this time the battle takes place on a series of floating platforms, which means you can't stand in one place for too long, otherwise you'll meet a fiery demise. So either stay on the move, or jump in place to avoid sinking into the lava.
Aside from that, the King will launch a trio of flaming rocks between attacks which can easily be side-stepped. However, keep an eye out for the blue flames that roam the arena. Also, after the second hit, fireballs will rain in from the sky - as long as you stay away from the edge of the platforms, they can't harm you.
Bowser Jr's Airship Armada: Sinking the Airships
Ship #1
Jump into the cannon on the ship's bow and launch yourself toward the top of the pole ahead. As you fly toward it, activate the Pull Star above the pull to ensure Mario doesn't fly past.
Shortcut #1Instead of firing to the pole ahead, aim the cannon as far left as you can, and aim for the far pole, next to a Luma salesman. This will allow you to bypass the 2nd ship and go right for the 3rd.
Ship #2
Quickly dash to the ship's bow to avoid the enemies' laser attacks and hop into a second cannon. Launch yourself toward another pole ahead.
Ship #3
The Luma salesman on the left will sell you either a 1-Up mushroom or a Power-up Shroom for 30 Star Bits - we strongly suggest the latter. Here's the kicker: Even if you currently have 0 Star Bits, there are just enough here to enable you to purchase one. Kill the wigglers, bust open the ? block in the rear, activate the Screw near the Luma, then kill the bug on the bridge for 31 Star Bits total. Remember this in case you die, as you'll spawn here.
Once you've powered-up, cross the bridge to the platform and flip the lever with a spin attack to cause the platform to begin moving. Along the way, you'll have to watch out for a series of cannonballs and several spiders. We suggest hanging out on either side of the platform to evade the spiders completely, then leap over the cannonballs.
When the platform comes to a rest, cross the final bridge to a Sling Star, which will fire you off to the boss battle.
Boss: Bowser Jr.
Bowser Jr will attack from the comfort of his own personal airship, but worry not, for although this battle's a two-parter, it's pretty easy.
Throughout the first portion of the battle, Bowser Jr will fire a trio of bullet bills at you. While a simple leap or dodge is enough to evade them, you can also duck down on either of the lower levels to guarantee that they pass over you harmlessly. Also make sure to watch out for a Kamek or two on the main deck.
At any time, grab one of the Koopa roaming the deck and chuck it at any part of Bowser's airship. After three hits, he'll switch tactics and shoot fireballs at you from head-on. Dodge then like the Bullet Bills, then chuck two more Koopa shells at him to deal with him for good.
Jump into the cannon on the ship's bow and launch yourself toward the top of the pole ahead. As you fly toward it, activate the Pull Star above the pull to ensure Mario doesn't fly past.
Shortcut #1Instead of firing to the pole ahead, aim the cannon as far left as you can, and aim for the far pole, next to a Luma salesman. This will allow you to bypass the 2nd ship and go right for the 3rd.
Ship #2
Quickly dash to the ship's bow to avoid the enemies' laser attacks and hop into a second cannon. Launch yourself toward another pole ahead.
Ship #3
The Luma salesman on the left will sell you either a 1-Up mushroom or a Power-up Shroom for 30 Star Bits - we strongly suggest the latter. Here's the kicker: Even if you currently have 0 Star Bits, there are just enough here to enable you to purchase one. Kill the wigglers, bust open the ? block in the rear, activate the Screw near the Luma, then kill the bug on the bridge for 31 Star Bits total. Remember this in case you die, as you'll spawn here.
Once you've powered-up, cross the bridge to the platform and flip the lever with a spin attack to cause the platform to begin moving. Along the way, you'll have to watch out for a series of cannonballs and several spiders. We suggest hanging out on either side of the platform to evade the spiders completely, then leap over the cannonballs.
When the platform comes to a rest, cross the final bridge to a Sling Star, which will fire you off to the boss battle.
Boss: Bowser Jr.
Bowser Jr will attack from the comfort of his own personal airship, but worry not, for although this battle's a two-parter, it's pretty easy.
Throughout the first portion of the battle, Bowser Jr will fire a trio of bullet bills at you. While a simple leap or dodge is enough to evade them, you can also duck down on either of the lower levels to guarantee that they pass over you harmlessly. Also make sure to watch out for a Kamek or two on the main deck.
At any time, grab one of the Koopa roaming the deck and chuck it at any part of Bowser's airship. After three hits, he'll switch tactics and shoot fireballs at you from head-on. Dodge then like the Bullet Bills, then chuck two more Koopa shells at him to deal with him for good.
Boo's Boneyard Galaxy: Racing the Spooky Speedster
Head down the pipe on the skull planet, then slide down the ramp to a Boo Power-Up. Now as Boo Mario, turn invisible to go through the wall on the right and speak with Big Boo.
Big Boo will challenge you to a race through this dank cavern. He always crosses the finish line at 53 seconds, so you'll have to move fast. Thankfully, you can trigger strategically placed fans, by grabbing their respective ? Coins, to speed through portions of the track. Furthermore, you can use Boo Mario's invisibility power to go through some walls for shortcuts.
Float along the path until you reach the first blue wall in the vertical shaft. Turn invisible to float through, then go through a second wall and grab the ? coin immediately after. This will activate the fan above, which will blow you down the shaft at high speed.
As you exit the shaft, hang right and grab the next ? Coin to activate another fan - ride its current to the area below. Watch out for the springs along the way, as they'll kill your momentum.
Hug the right wall as you drop through the next shaft to collect another ? Coin. Enter the current it creates, then drop down the center past the three moving platforms.
Continue to hug the right wall, turn invisible to go through the wall, and grab another ? coin and enter the air current that activates. Now just drop through the remainder of the level, turning invisible to bypass the walls, until you reach the goal for your star.
Big Boo will challenge you to a race through this dank cavern. He always crosses the finish line at 53 seconds, so you'll have to move fast. Thankfully, you can trigger strategically placed fans, by grabbing their respective ? Coins, to speed through portions of the track. Furthermore, you can use Boo Mario's invisibility power to go through some walls for shortcuts.
Float along the path until you reach the first blue wall in the vertical shaft. Turn invisible to float through, then go through a second wall and grab the ? coin immediately after. This will activate the fan above, which will blow you down the shaft at high speed.
As you exit the shaft, hang right and grab the next ? Coin to activate another fan - ride its current to the area below. Watch out for the springs along the way, as they'll kill your momentum.
Hug the right wall as you drop through the next shaft to collect another ? Coin. Enter the current it creates, then drop down the center past the three moving platforms.
Continue to hug the right wall, turn invisible to go through the wall, and grab another ? coin and enter the air current that activates. Now just drop through the remainder of the level, turning invisible to bypass the walls, until you reach the goal for your star.
Comet Observertory
Sorry for the blur image. This was caused by my computer. Any inconvience caused is much regretted.