Great game! Love the visuals, and this has to be one of the most original ideas I've seen yet. I like the level tree that lets you pick what you want to do, and I had fun playing. Managed to finish the game on my second try. The only thing is that it might be too easy, as I didn't really feel the need to get many upgrades. However, I did have a close call on my second run, so maybe I just got a bit lucky. Great game.