Super Mario Galaxy 2/Sky Station Galaxy

Items in mission 1
On the first planet, jump into the orange pipe to teleport to a cage at the other end of the planet. A 1-Up mushroom will be right next to you. Another 1-Up can be found on top of the third set of rising platforms in the second area. This one is one of the easiest to get so you should not miss it. Three 1-Up mushrooms can be obtained in the second area by running into all of the music notes after getting the large ? coin. Another 1-Up mushroom can be found in the fourth area inside a crystal after passing through the first strip of mud. The comet medal can be found in the fourth area. When on the second strip of dirt, backflip onto one of the large moving gray platforms. The platform will ride you all the way to the comet medal. A red life mushroom can be found sitting in the open on the fifth area. It is important to get this before you fight the boss.

Items in mission 2
On the first area, spin into one of the green objects so that it hits one of the treasure chests. One of these chests holds a 1-up mushroom and another holds a rainbow star. On the third planet a one up mushroom can be obtained by ducking and crawling through a small passageway. On the fourth planet, a 1-up mushroom can be found sitting near the Banzai Bill launcher.

Star 1: Peewee Piranha's Temper Tantrum
Upon arriving on the first planet, go down the green warp pipe to teleport to the other side. Once on the other side, climb up the small hill and break the large crystal. Fall down the hole after destroying the crystal and you will appear on the roof of the house on the first side of the planet. The Luma on top of the roof will turn into a Launch Star which lets you proceed to the second planet.

Follow the path up the sets of yellow rising platforms until you find another Luma who will turn into a Launch Star.

The third area is a small cluster of planets. Ride the small Launch Star which will send you flying into the large Launch Star.

When you arrive at the fourth area, jump across the strips of mud until you find another Luma. Ride the Launch Star and you will land in the fifth area.

Proceed past the checkpoint flag to the other side of the planet and ride the Launch Star to the boss area.

Boss: Peewee Piranha. To damage the boss, simply use your spin attack on his rear end seven times. This should not be very hard to accomplish since he will only occasionally jump out of the way. After defeating the boss, grab the shiny Power Star that he releases.

Star 2: Storming the Sky Fleet
Upon arriving at this galaxy, go down the warp pipe to appear on the underside of the planet. Spin against the bouncing bushes to defeat the Chain Chomps. The second Chomp clockwise from the warp pipe has a key to unlock the Launch Star.

On the next planet, Bullet Bills will come toward you. Walk towards them and to the underside of the planet to find a doorway inside the glass. Confined to a two-dimensional puzzle, go right past the checkpoint flag until you fall down (and around). Keep right to land on the platform above the Rock Shooter. Continue to the right, using the cogs to reach the Launch Star on the bottom right. There is also a time-trial warp above this platform.

Tag the checkpoint flag and touch each one of the Question Blocks to turn them yellow. Pause at 6 to let the Bullet Bill pass. 6 7 5 4 8 2 3 1

Avoid your Clones on the next set of color-changing tiles to reveal the Launch Star. 11 12 13 14 10 -- -- 15 9 6  5  4 8  7  2  3       1

The next checkpoint flag precedes a gauntlet of Bullet Bills. Avoid the mud in front of the second cannon and make your way toward the Star Bit path. Use the bouncing bushes to defeat the larger Piranha Plant and retrieve a key to unlock the Power Star. Carefully retrace your steps down the path toward the Power Star.

Star 3 (Prankster Comet): Peewee Piranha's Speed Run
This mission requires you to complete the Peewee Piranha's Temper Tantrum again but with only a few seconds to complete the level. The green timers add bonus time to your clock, so looking for these is your first priority. Even missing just one green timer could result in failure.

Green Star 1
The first green star is located in the first mission of this galaxy. It can be found just hanging off the side of the cylindrical cottage on the first planet. Drop off the side of the cottage and fall into it to obtain it.

Green Star 2
The second green star is also located in the first mission of this galaxy. On the second planet,go up to where the launch star is, but do not use it. Instead drop off the side of the white fence right next to you and you should drop right into the green power star

Green Star 3
The third green star is located in the second mission of this galaxy. In the second area, the green star is located near the blue warp pad. Long jump from the moving platform and run right into the green power star.

Time-Trial Warp
Grab the Rainbow Mario power up and defeat all of the Octoombas. Collect the Star Bits and the three 1-Up mushrooms.