Nice game! I like the clean artstyle and soundeffects. The mechanic is very straightforward and easy to learn so I didn’t need an actual tutorial to learn it, which is nice. One piece of feedback: I feel like the high amount of 1-cell-regions sometimes make the solution path a little too obvious. But I’m writing this only after level 6. Still I’d probably try and set a limit of 1 max per 5x5 and maybe 2 per 7x7 to keep the challenge level a bit more interesting.