KnowsNothing said it. My review should be up later this week, but it doesn't have any normal platformer level conventions. You get hit once you die, and start over. There "Endless" and "Challenge" modes that test how long you can last. The other two modes can be beaten fairly quickly -- one is score attack, the other is time attack. It's more like an arcade or puzzle game in that you're constantly replaying because you know you can do a little better.
You draw clouds to walk, make bubbles around enemies, shoot enemies with eggs (eat fruit to get more ammo), and blow to clear away clouds. The levels have specific sections that you'll recognize, but are put together randomly.