I really wish I had prioritized some sort of indication about enemies getting damaged, but I ran out of time. The bigger ones just had more health, that's all. If they dropped to zero they would stop for a short time - the original idea was they would restart with a little bit more health so you had to "down" them and then hit them again to suck them up, but things got kind of overwhelming so I left in the down mechanic and then just didn't give them any more health when they started back up. This meant there really wasn't any way of knowing how much hp the enemies had or at what point they could be sucked up. That would definitely be my #1 item to fix in retrospect, but I just ran out of time honestly.
And I don't remember where I heard the idea about debug commands, I think someone mentioned it on discord and I had the same thought, "how didn't I think of that?" haha. Thanks for your feedback :)