I really like the idea! It's a fun concept and I enjoyed playing it. I think I found a bug that lets you duplicate slimes. Since bug fixes are allowed for 24 hours after submissions close today, I thought I'd report it.
Steps to reproduce:
- Start Level 1.
- Split the slime into two (2 medium slimes).
- Move one medium slime to the right and split it again (1 medium, 2 small slimes).
- Move one of the small slimes back to the left where the other medium slime is.
- Select the medium slime, split it, then press combine twice.
=> The slimes get duplicated.