Love the atmosphere! The music, the visuals, the animation, all very good, well done!
I feel like using C or J to jump is very awkward though... Why not use space like... Any other game? It forced me to play in a way I'm not used to (moving with my right hand, arrow keys, and actions (jump, dash etc) with my left hand and it's very difficult. On top of that the difficulty is something else! WTF is that speed on the homing ennemies? xD Cut me some slack, haha. Instead of a challenging game, it really felt like an unfair game, I must say.
Don't get me wrong, I really liked it, that's why I continued playing, but... yeah, At least some rebinds for they keys could have made it easier I think.
Anyway, still good job on the game!