Really interesting idea and the slime art was great! A little difficult to split without joining straight away but it was a nice take on the theme

Game does fit the theme, found the splitting to be difficult as it seems to drop one slime on top of the other unless you are holding the arrow keys already. As Ronkad said, figuring out how to split to get over the walls was a bit odd. Is there a different mechanic in mind for that level?
Level 3 was also difficult to work out as I had no way of knowing which parts of the screen would kill me and which I was supposed to fall into. Some indication of the safe spots to change map areas would be helpful.

Really fun concept! I would love to see some more levels! I also really like the emergent mechanic with the teleporting! Really cool!

This is an amazing concept and there is much potential here! I think it was a bit unclear that splitting and joining could skip you over walls and in level 3 I don't see a nest or goal of where to go? Overall this was great.