This is a pretty solid entry. The graphics look really nice and the music fits the game really well. The way the big white blood cells are introduced after a bit of free-reign over the reds works well. They are nice a big and somewhat terrifying.
Thanks for having a controller option though it took some trial and error to figure out the dash button. Controls felt smooth and it was pretty satisfying to see how efficiently I could graze the red blood cells to infect them. Great job with this.