I really really liked what I saw here! At first it looked like it was going to be another one of those “move both characters with the same controls” puzzle games, but turned out to play far better than I had hoped.
Having individual control over the slimes is a very very good decision and definitely makes the game less frustrating than controlling all of them at once would have been while still allowing for very interesting level design. I loved how you implemented the “joined together” theme by having the enemies move at the same time insteade.
And the level design! Level design for a puzzle game is really hard and you did a great job. There were more levels than I was expecting, and all of them made me think for a couple of minutes before I found the solution.
Overall, wonderful job, and I’m glad to have played it.