Cool art style and Idea, brutally hard though :) with a 2nd player it was more possible but we still didnt make it very far.
One problem: keyboard controlls werent listed, so it took a few minutes to figure player 2 out, here are the controls:
Player one:
a & d to move
space to jump
e to reflect
Player 2:
left and right arrow to move
0 (numpad) to jump
1 (numpad) to reflect