I don't know what inspired this idea, but it's absolutely hilarious! That weapon could be a Borderland's gun^^.
The game is gorgeous, and the music fits perfectly. However, I feel like the gun grows too quickly. It would have been great to have a way to reset the scaling, as it becomes unplayable really fast.
I often had to "cheat" by killing enemies before they saw me. By waiting long enough, the gun stabilized, and I could aim correctly. I gave up at the third level when I realized I couldn't move on to level 4 without killing everyone. I didn't have the patience.
Also, in most FPS games, I use "R" to reload (and I think I'm not the only one), so I accidentally reset the game a few times. (even if in that game we can't reload)