Starlit Adventures

Collect all stars to in world 5 - Cog Castle
Some stars are hidden in blocks, so dig or destroy as many blocks as you can to find them all.

There are 3 gold stars that need specific suits, however, all three can be obtained with only the purchase of the flying suit.

Level 34 - Flying or Bomb Suit.
Under the water bit with the chest, the gold star is high up in plain sight, fly over with flying suit, or with bomb suit, place a timer bomb and jump on top of it.
Level 36 - Flying Suit, Electric suit
At the very end of the level, you are supposed to use the electric suit for a metal block pulling puzzle, but you can just fly up through the dirt blocks and get it far easier.
Level 38 - Any
You are supposed to use the diving suit as the star is at the bottom of a long water section, however you can just rush to the end of the water section and pick up the star, you will drown, but when you respawn at the checkpoint, you will have the star. Also helps that there is metal blocks in the water you are supposed to push, when they move, they briefly make an air pocket with you can use to get more air and reach the star