It's fun, but very challenging. I wasn't sure what the brown thing was in the level. Should I be collecting that? It seems like the level starts over when I hit it. The enemy is very aggressive in the first stage, maybe it would be good to ease the player in with 1 or 2 easy levels first. The enemy on the 2nd stage was really fast, faster than me, so I don't think it's possible. The limited view area is an interesting idea though to increase the challenge further.