This was fun! It's a simple game in premise, what with it being a "shoot at things so they don't hit something you're trying to protect" defender style deal, but that doesn't mean it wasn't a blast- no pun intended. The art style was charming, the background music was simple but not repetitive, and I enjoyed the sense of progression in the guns. I noticed that because of how the physics and enemies worked, though, it was easier to die so I was started in the center than ricochet everywhere, as sitting in the center let me defend better.
I also would have loved to have seen more variety in the bad thoughts, but given the short timeframe we had to work, I understand why there weren't more.
Great job!