Simple, but effective, little platformer. I like the art; the monochrome style really works for me.
I'm not a huge fan of the level design with the leap of faith into a fan that blows you into spikes. But I'll admit, it did make me laugh a little when I first fell into it, whether that was the intention or not. It's too bad that level 2 seems to be busted. I see that you're aware of the bug; is the rest of the game completely unplayable right now, or is there a way around it? I'd love to be able to play a bit more to better rate the game.
Overall, this game is good at exactly what it needs to be good at for a simple little platformer. Good work!