I'm gonna say sorry already.
I never got any further than opening the game. The snail never moved, even though I pressed all my keys, and I mean all my keys.
I know this is a rage game, but you should give the player some feedback or they will just go away from the game like I did.
If the player is stuck and can't find the right key, and they have pressed the "k" key as the tutorial says, you should give the player some feedback to help a long the way.
I really liked the music, and that was really the only thing that made me try all my keys a few times, even different others and totally random.
I'm really sorry if my comment seem harsh, but your game was even more harsh to me :P