Step to the Beep
Here the floor plates are constantly changing back and forth. However, you can not influence this yourself as in the flip-swap Galaxy, but must pay attention to the ticking in the background. As soon as this starts, a change is announced again. So watch exactly where you jump and always listen to the beat. If you miscalculate, use a spin in the air to perhaps make up for life-saving time.
The Comet Medal can be found at the beginning of the level. After completing the straight track, where two yellow and green cubes were placed, you will see these floating to the left of you. Wait for the yellow plates to reappear and get them as soon as possible.
In the end, you have the task to find a total of five Silver Stars on the pyramid. The first three are evenly distributed on the first floor. So start looking here before you move up. Ultimately, you get a Power Star.
Silver Stars in Double Time
Select this challenge when the Prankster Comet appears.
Basically, you have to complete the same level as in the star before. However, the clock frequency has increased drastically, so that the whole thing is a good portion of trickier. Move forward bit by bit and rush nothing. Your reaction time is strained to the utmost anyway. At least the opponents were removed from the action, which is admittedly only a faint consolation.
Ultimately, you have to collect all five Silver Stars again to enjoy the Power Star. You have been provided with a Yoshi for this, but it is not absolutely necessary. With Mario, this may even be easier to do because you can control your jumps better. But if you can handle Yoshi better, don’t force yourself and try with him.
Comet Medal
After the second path’s checkpoint, collect the medal on the connecting route before the final pyramid. Jump to the beat and use solid purple platforms to pause.
Green Stars — unlock requirement
Collect all 120 regular stars and defeat Bowser again to unlock the Green Star hunt. Choose the corresponding Green Star mission from this galaxy’s mission screen. Follow the detours below rather than collecting the normal mission’s ending star.
Green Star 1
In Step to the Beep, reach the purple platform connecting the two routes. Break its crystal, then backflip and spin towards the star in the upper-left corner. Start from solid ground rather than a panel about to disappear.
Green Star 2
At the Beat Block pyramid, move to the solid purple platform on the right. Climb the nearby orange panel while it is active and backflip, adding a spin at the top to reach the star.
Check each numbered Green Star on the mission screen after collecting it. The routes finish immediately when the star is touched, including stars suspended over a gap.