Fun puzzle game!
A few notes though that got me confused. On level 2 the second cloud you don't need to freeze, the jump is short enough. And the third level... if you stand under the cloud closest to the door and press E you can just skip the level, I accidentally pressed it (wanting to jump) and the level skipped and I was very confused. And the same happens if you start the fourth level and press E where you spawn.
Still, despite the bugs, pretty cool game, cute penguin, cool art and animations. Good job!