The idea is really unique. I got so stressed keeping these slimes apart.
It becomes a bit hard to keep the requirements in mind when trying to frantically keep them apart. I think you could explore a bit on that and maybe introduce them staged? That way the player has some time to process and do before the next requirement shows up.
I also think you can do some nice challenges with the world, maybe put in some obstacle course, maybe some deadly spikes, maybe some restaurant and movie theatre where these slimes reproduce even faster!
Great game. Congrats on submitting!