Pretty fun, especially the endless mode. I almost wish you had made the entire game the endless mode with more content. The game lagged a bit for me, but not so much where it became too annoying. The graphics were simple, but I liked the use of a lot of blue colors. When I played normally, I never regained any health because it takes that long for it to begin regenerating, so maybe either make health drop from enemies, or just make it take less time to regenerate. Fun game overall :D