Love the art and music and the vibe they bring. The concept is pretty cool too. It took me a second to realize that red+blue = green. I would maybe make that purple instead, just to show you didn't lose the colors but rather they combined. I also think it the platforming is pretty tight, I would easy up a bit on it since the puzzle angle I think it where the fun lies. Maybe make the spikes a bit shorter. All in all good game.