I really liked the game; the concept of upgrading the game yourself is very interesting. The music is pleasant and the enemies are varied; if the game gets some more polish, it’ll turn out great. I found a couple of bugs: 1. You can stand inside an enemy; you take 1 point of damage and then become invincible. 2. This is purely visual: add logic to make bullets disappear when they touch doors.... goos work 'O'