I really really like this take on the theme! It's a really fun concept to use the "spin" mechanic to choose the type of bullet in your chamber, and the bullets themselves felt different enough to be interesting, to the point that I would actively try to get a specific one in specific situations, and if I "failed the timing", I would adapt to get the most out of the one I got, which was loads of fun!
Loved the casino theme/visuals too, and the music fits this atmosphere quite well. Great job, loved the game!