Like the idea. needs a way to tell visually that your hitting the things other then it explodes. the big ones take more then the one hit for that to work. also the upgrades could use a bit more of an actuall visual change. The only change I noticed was on the last weapon upgrade(which was pretty good.)
way to difficult for a pick up game. you need to memorize the mix chart (after finding the thing) before you can really even start and even then it isn't that great of a game to spend the time learning it