The game is really nice. I like how you interpreted the theme as having an emotional aspect to it, which gave it some sort of story. I also think the rectangle having a name was very cute, and all of the characters were very charming. Maybe as a next step you could try to implement procedurally generated levels so that every round is not the same. The idea is a good one, so it would be nice to have more variety. Overall, cozy game and good job.