Cool game man. Don't like sound effect you have for the rain, or droplets, it's really harsh, and instantly irritating. Personally I would try something with less attack, maybe even an actual water drop sound effect.
I thought that maybe the guy runs a little too fast, when i was trying to climb the small platforms i kept slipping off countless times. The jumping I kept messing up but I figured you jump then you move while at your highest point in the jump. Other than that, so far i really enjoy it!
Glad you enjoyed the game. I wasn't really happy with the droplet sound either, but I already only had half the time to work on this (I spent a grand total of one day to make this) so the game wasn't as polished as I would have liked.