Collect all the stars in each level by hitting them with a ball of the same color. Use designated cannons to shoot the ball around, change its size and color, and overcome a variety of different obstacles.
Reach the exit goal in each level by using your ability to swap the properties of any two objects. Give spikes a flat surface, turn metal blocks springy like a trampoline, and do anything else you can think of to overcome a variety of obstacles.
Flap through obstacles for as long as you can while avoiding the crazy mind-altering pills. The more pills you take the stronger your hallucinations will get. Grab the white pills to bring things back to normal.
Free all the cats trapped in cages in each level by matching up at least 3 of the same color horizontally or vertically. Be quick and remove cats before they reach the ceiling or else you'll lose a life. Loose too many cats and it's game over.