Super Mario Galaxy 2/World 1/Sky Station

Sky Station is the first Galaxy and will be the first one to be played immediately after the epilogue. It have 2 regular gold stars and prankster comet star, total 3 stars.

Pewee's Piranha's Temper Tantrum

First section

Once landing on the first planet, a luma will tell you the Bowser took their all stars. From where you are, go left or right to your decision, until you will find a green pipe right next to red one (the red one will take you to a 1-up), get on the green pipe to get the downward section of the planet. On there, go above the hill and hit the crystal with a spin, and drop there. you will now be on Yoshi's house roof. Go to the Luma that calling you and he will make himself a Launching Star to send you to the next platform.

(in this launch, Mario will break a star crystal, point the Wiimote on the star bits around him to get them)

Second section

In this planet, there will be Octombas and transforming platforms, navigate carefully following the Luma to the right of the planet, eliminate or avoid the Octombas and the platforms (there's 2 1-Ups on the way to take), to the tallest tower. Carefully jumping of the transforming platforms before they pop out, and the Luma will transform to a Launch star.

Side quests

1. Taking the ? marked coin behind the flag will makes notes appears. Take them quickly and 3 1-Ups will show up. (It's advised to kill the Octombas ahead to make this a lot easier. But it's also possible without to)
2. From where you took the 3 1-Ups in the previous side quest, go up to find a shiny blue disk. Spin on it to take 3 1-Ups side quests that will show in most galaxies. In those you will have to take out all the enemies before the time will run out and the 3 1-Ups will appear. Though even if you make them appear, you will have to take them quickly too before the time run out. In this Galaxy, a rainbow star will be appear in this section to help you eliminate all the Obtombas so it will be lot easier than most of this side quests.

Third section

This section will include three small planets. Jumping too hight will release you from the gravity of each planet. Jump to get to the non-grassy planet and jump again to the mini star launcher. One you will be launched, you will circle a third planet and will come to a second mini star launcher. If you will spin this you will get to a ? marked coin that will have star bits. Otherwise, you will continue to be drifting to the third small planet with big star launcher. Spin in it to be launched to the Fourth section.

Fourth section

In this planet there will be two moving blocks, Octombas and flying Gommbas. Right in front of the flag make a long jump to avoid the muddy way. From there navigate carefully to the right side of the planet. Be careful crossing the mud in where the moving blocks are, since they will slow you down and the moving blocks might push you to the black hole. So rather go fast to get past them, or make backward jump to get on the moving blocks and jump forward from them when land is in sight.

(There's 2 1-ups here, one on the first moving block. 2nd in a crystal before the 2nd block)

When you crossed the second moving block, if you hadn't came to fenced grass patch, you will be either on a platform with Octomba - from there make a long jump toward upward section, or with flying Goombas - where Luma will guide you to the fenced grass patch. Eliminate or avoid enemies on the way, and he will transform to Launch Star, warning that a monster is on the way. Spin to launch, and Mario will break on the way another star bits crystal.

Comet Shard

Comet shards are important to make a prankster comet to appear, and is found on every galaxy (even those who doesn't have prankster comet). In this galaxy it is found on this section.

Go near to 2nd moving block and when it's getting close, make a backward jump or jump+spin to get on it. Stand on the middle and near the fenced grass patch Mario will take it.

Fifth Section

You will land in front of one Octomba, eliminate or avoid him. Behind him there will be red star mushroom who will grant you another 3 lives making it six total. Mark the flag and move forward to get to to the other side of the planet.

There will be three stairs with Octomba on each on them, eliminate or avoid them to get to the launch star that will tell you he's seeing a star light over the next section. Meaning the next section will be the last. Launch on it to get to the boss.

(behind the stairs there's a floating 1-Up)

Boss Battle - Pewee's Piranha

Mario will land on an egg that will hatch once landing on it, making Pewee to hatch from it. This is the first boss battle in the game. It won't be hard unless you haven't mastered the spinning technique yet. Pewee will have 2 attack stages:

Stage One

Pewee will circle the planet seeking to hit you. Quickly get to his egg on his back and spin on it to. Three hits will make the egg shell to break out, and then Pewee will run out from pain. Hit him in it's painful back once more. He will actually will try to ease it's pain by sitting, giving you a free strike.

Stage Two

Now Pewee will get his egg shell back and will be furious, and those will be faster, other than that nothing changes. Repeat the previous stage to hit him three time to break his egg shell, and fourth to end him. The star will appear now. Take it and acquire the game's first star.