Generally had a good time with this one. The other comments cover most of my notes, but one thing they don't mention that I noticed is that the game seems to end rather abruptly. I was in the middle of a fight in what I think was the last room, with enough health that death wasn't a concern, when it transitioned to a screen with the game's title. And this was my second playthrough; on my first playthrough I ricocheted a bullet off the wall above me, and then the game ended. My best guess is that the game end is triggered when part of the player enters the end zone, and the bullets are treated as part of the player, so by shooting too far into the last room you win?