Super Mario Galaxy 2/Beat Block Galaxy

Star 1: Step to the Beep
Goal: Collect all five silver stars at the end of the level

Hint: A good move to use in this galaxy is the Spin Jump. Just jump and spin!

You're going to have to use your ear in this galaxy! Most of the blocks you'll be walking on are Beat Blocks. These are yellow and green blocks that swap every three seconds. For example, if you saw some yellow Beat Blocks and then waited three seconds, they would disappear and some green Beat Blocks would appear in a spot close to where they were. When you get to the pyramid, do what the goal says and you'll earn a Power Star.

Comet Medal
The Comet Medal is in the air in the middle of the level. Wait until the right time to get it.

Star 2: Silver Stars in Double Time
This is exactly the same the Step to the Beep, except that everything is four times faster than usual. Follow the instructions on Step to the Beep, but remember it's going faster than usual.