Trippy
Until level 10 or so, my eyes did fine, but after that...I was trippin' out. Excellent concept for a game, though hard on the eyes if you're trying to get a high score...that, and touchpads are less than ideal for speed, but that's my own fault. After a while, throwing in a fourth (or more) colour would make this a pain in the rear type challenge/twist, maybe an idea for future consideration (unless it does happen and i just didn't last long enough).