Green Star #2 is over where the Comet Medal was. This will let you get all the way to the top. Stick to the left and get the second Pepper. Green Star #1 is at the first major climb. This planet is a simple matter of taking out the Kleptoads until you get all 5 Silver pieces to create a Star. The Luma will transform into a new planet for you.

Use the Giant Coin at the beginning of the level to get the 30 coins you need to pay the Luma who is hanging out to the right of where you head up for the Comet Medal. Now you need to do it all over again only this time you get just 2 Minutes and there are no Stopwatches to add time. At least there is a floor beneath you if you miss so can keep trying until you get it. Now you need to go up and around to the Star. When you reach the top Flower Swing over to the left side. If it's not make sure to stear Yoshi's fall back to ground to the left side to avoid going out into the Void. If your aim is good you can grab it and continue on. Head up the other side and at the very top is the Comet Medal. Go up the blue, across the wooden planks and back down to the suspension bridge. Now we get to do all of this on a vertical wide open area. Yoshi is not quite fasty enough to get off all of them in one piece so jump at the end of each to make sure you make it to the next one. Next we have a quick run over falling platforms. You will need to make this run next time to get the 30 coins required by the Luma for the hidden Star. If you feel bold grab the Giant Coin on the left side to reveal a nice row of coins for you to grab. Run number two has you dodging walls and lifts. The first section is really just a straight up run to get used to the controls. Be careful of your angles because the smallest hit or misstep is going to send your both off into the void for instant death.

FUN! Head your way to the first ramp and Yoshi Lick the Hot Pepper. Time for a high speed run on Yoshi with some pretty tight angles.

Hidden stars super mario galaxy 2