Nice game, and very interesting take on the theme, It was not really obvious that you could step on the blood maybe make it stay on the screen longer. you did mention thins in the instructions but the game is very fast pace so I missed that, until I watched your video .
here is my game link give it a try and don't forget to rate and comment
https://itch.io/jam/bullet-hell-jam-2022/rate/1486607