I really liked the main gimmick of this one. Having a limited number of bullets is fairly intuitive by itself, but I like that you refill your bullets by grazing. I feel like the easiest option most people would have thought of would be to just have enemies drop bullet pick-ups when they die, but for me personally the grazing was a lot more engagement. The two systems combined give a fun loop of going back and forth between positioning yourself to shoot enemies and around bullets to refill. How all the systems interact makes the game as a whole feel very intentional and not just a schmup with a gimmick slapped on top.