|Space Junk Galaxy|
Head upwards and grab onto the large sphere pull stars. After you go through the first three, then the regular ones will pop up again, so head right through this area. When you land on the platform at the end, dodge the bug creatures or explore this area by going underneath it. Up on top, free all four Toads in the crystals, though make sure you don't break the one with a Goomba inside. Once you free the Toads, the Toad Brigade ship will come. Jump onto it, go on the other side then go through the sling star.
You'll now land on a platform. Go straight, and you'll notice that the debris around you will form more platforms. What you have to do in this general area is collect all five silver stars, which will thus bring out the power star for the level.
After you go straight, head left onto the greenish part. Jump over the gap that appears and collect the first silver star on the brownish/orange platform. Head back and go the opposite way and head up the blue stairs to the right. Get the silver star up here, then head back down in the middle and head upwards.
When you go up, the platforms will get smaller, so be cautious! Head left when you go as far as you can then head up, making sure you go along with the winding path. There's a silver star to the left of you and one right ahead, so get both of those then return back to where you were on the small green platforms and head right this time and then up. Once you get to the red platforms, jump on them then the other. Collect the final silver star then return back to beginning of this area to claim the power star!
Kill the Goombas and get the extras if you wish. Go over to the lever and spin attack it, which will cause the bridge to drop, thus giving you access to the other airship. Head over the bridge and you'll see two cosmic MIPS jumping around. To get the 1-up mushroom to the left, either jump and spin or long jump. And to get the coins above to the right, just jump up high and spin. Head over to where the box is then jump and spin to break it. A sling star will be released, so go through it.
On this airship you'll find a few Goombas and a Koopa Troopa shell, not to mention a Magikoopa and a few chests. Right at the beginning you can spin on the wheel which will cause it to rise, giving you access to the ? box above it. There are also two crystals here which have Toads in them. If you want, free them, though it's only optional. Grab the Koopa shell and fling it at the chest near the front of the ship. A launch star will be released from it, so go through!
On this airship, you'll land on a dock above the ship. Head left then long jump and grab the pull star above the chimney. Head inside it to get a whole bunch of star bits, and once you're done you can return back to the airship by using the sling star. Free the Toads here then grab one of the Koopa Troopa shells and fling it over to the opposing enemies who are ejecting flaming projectiles. Once you've killed both of them, the bridge will drop. Go across it and through the sling star. This is the boss' ship, so get ready!
She'll start by shooting fireballs and Koopa shells your way. When she shoots a Koopa shell your way, grab it quickly by spinning next to it and then send it her way. You'll know what she shoots out by the color of the the trail. If it's green, it's a shell though if it's red, then it'll be a fire ball. After a few shots, she'll summon a couple Magikoopas. Rid of them by either spinning near them or jumping on top of them so that you can focus solely on the paramount threat. Once you hit her again, she'll die and the power star will be released from her wand. Get it and end the level.
You'll land on a rock type planet. Head forward and kill the bugs here. Eventually you'll come across a Toad who is stuck to a sling pod. Grab the sling pod and send him where ever you want - it really doesn't matter. Now jump on the sling pod and aim yourself to the platform ahead. After that, go on the other sling pod and launch yourself to the ship. On top of this ship is a Life Shroom, so be sure to get that. Launch yourself to the next planetoid and then finally you'll come in view of a planet that is covered in web. Launch yourself that way and the fight will start against the boss.
The boss will be in the middle of the entire stage the whole time. You're allowed to go around the entire stage, and you'll clearly notice the sling pods. Grab onto them and shoot yourself through the bosses bulbous things that are jutting out of its body. The large one is the one you want to hit, as it'll flip him over. When this happens, launch yourself through all three weak-points that are clearly visible. After doing so, you'll have to repeat the process once more.
When fighting him, make sure you avoid his acid he spits out. If you can't manage to grab onto one of the sling pods, then take note that there are some platforms that'll give you a little boost. Make sure when slinging yourself across the stage that you don't crash into one of these platforms, as it'll destroy it completely. If you're running out of health, then just use the pointer to grab some of the coins out of the sling pods, then head over and grab it.
After you've killed the boss, a star will be revealed in the middle of the platform. Use the sling pod and aim yourself at it to get it.
Once you've gotten all of the stars, head back to the beginning and collect the power star!
Then go up some more and collect 10 more purple coins. Head back down, then left and finally up again to get 10 more. Head left again to get 10 more purples. Head left again and jump over the gap to get the last set, which will cause the star to appear. Go back to to the beginning and get the star before it's too late!
Go onto the planet and you'll probably see the Hungry Luma, though clearly you don't have enough yet. Break the crystals that are around here to get some more and go inside the planet to get yet more. Make sure you don't go through the launch star, because if you do you'll have to start the level over! Once you've found enough, go back to the Luma and feed it 50 star bits.
Once you do, it'll transform into a wooden Yoshi head (awesome!). Spin through the new pink launch star to get there. Once you do, you'll be greeted by about 20 or so Goombas! Kill them all, and if you wish perform some combos which is always fun! Often times red steam will be released from the Yoshi's nostrils, and it'll harm you if you get in its way. Once you've killed all of the Goombas, then the star will appear, grab it to end the level.