Some clever ideas and very much on theme :-) having it be random who does and doesn't transform between playthroughs was definitely surprising!
I like the feel of the controls - raise gun and fire gun being separate actions was cool, and the animations were nice.
I did run into an issue where I failed one run because my bullet went through a monster and killed an innocent, which was a bit frustrating, but otherwise didn't have any problems.
It would be nice if the opening dialogue was either faster or skippable because it put me off trying again after my third restart.
Overall a very solid entry!