The first star can be seen almost as soon as the screen starts to move. Throw your boomerang out and hit the red/blue box to make the comb platforms appear under the star. After the clear pipe, you ...

This star is difficult to spot just beyond the rolling line of Chomps at the start of the level. To reach it, hop right onto the Chomp track and back-flip over the Chomps as they roll towards you. You ...