Congrats on finishing an entry -- delivering is a big accomplishment in and of itself.
I like your choice of sprites, and the game is complete.
Oddest thing for me was how it feels like I almost need 3 hands to play -- two for controlling the character, and one for moving the mouse. If I could use "up" (or W) to jump instead of only spacebar, then I wouldn't feel like I needed two hands to be dedicated to the platforming, and then need another hand to control the mouse.
But that said, this makes me think of a Mario Galaxy sort of game, where one player is controlling the platformer, and another player is driving the light with the mouse -- a two-player run-and-gun type game could be cool.
Once again, congrats on shipping.