The posing for the mc is awesome, I love her design. The spin the revolver mechanic also feels very good to execute and its super unique! You landed on a very fun and unique gameplay idea. I would have loved to see a system with different mechanics supporting the random roll of the revolver drum.
I'm also curious about the intent behind the healing bullets. I understand they just heal enemies, which is kinda bad when you are trying to kill them. Are they broken or are they meant to be a "bad roll" on the revolver?
The game was awesome and its very nice that you added a save state to the game. I wanted to test some things to write this comment and having my progress saved was a good surprise (extra points on the rating for that!)