I liked the lights and graphics. The way particles come out when you jump is really nice. My suggestion: add music. I bet that with the right music track and these lights, the feel of the game would be completely achieved.
Thanks very much!
I do have a music track, maybe there was a bug where it didn't play for you?
That being said, I'm not much of a composer, so it definitely could use some work.... I might try and redo it after the jam.
Oh, my bad then, I'll try on a different browser, maybe something got bugged