this game is way too hard make some easier levels at first
Edit: okay you need more than one sentence:
Put the easier levels at the beginning. After reading the comments, I'm seeing a lot of people warded off by the first few levels, despite one saying the later ones are easier.
If the levels at the very beginning are way too hard and look impossible, what do players think is still left in the game other than hard rage impossible puzzles? Or you could, at the very least, add star difficulties.
I know it's in the order of creation, but you need to put it in order of difficulty instead as to not ward off players, and also maybe get more playtesting for the harder ones and make there a tiny clue as to how to beat it.
Adding onto that, you need a much better audio experience. You need some music, maybe a move sound effect, and an eat sound effect. If you used Godot and put music on autoplay, I think Google and other browsers don't allow that, so you will have to play it with code.
Trust me, once you add this stuff, average playtime might double, or triple, or whatever you think is gonna happen.