Addicting! The controls feel nice and the upgrades are varied. The subtle differences in enemy behaviours are also appreciated! Sometimes the cellular growths didn't despawn after shooting an enemy, maybe it was intended though.
The cellular growths only despawn if they were directly connected to the enemy. So it was indeed intended. I wanted to encourage letting the automatons grow, so it will be harder for the player, but also gives them the opportunity to quickly destroy a bunch of it at once.