Really solid submission! The variety between cell types was fun and they all had different enough playstyles to make them feel worth separating. At first I thought the platelets were going to be problematic, but even they felt well balanced. The only thing I would change is the cell type prompt that shows up each time the level starts. Initially it was helpful, but after a bit it felt like more of a disruption to your gameplay loop than anything else. Having the option to skip that phase would really smooth out the transition from one section to the next.