Very cute game, I loved all the small bits of sound the slimes make! The puzzles were pretty well-designed and overall it was a pretty smooth playthrough from start to finish. I think my favorite puzzle is the + shaped level with the yellow slime!
Some minor feedback is that it was a little bit confusing at first that you had to click and hold to delete chains. I thought the tutorial sign actually meant that I could _not_ delete a chain once I formed it. In fact, maybe there could be an alien type that worked like that. There seems like a lot of room to explore the mechanics further!