It's awesome that you've already thought about accessibility in your project! That makes it a lot easier for new players. But as for the difficulty, in my case, it's pretty smooth.
Congratulations on your project! By the way, it's a very interesting idea to attract a casual audience and, above all, to pass the time.
I'd just like to give you a few suggestions: first, it would be nice to have a menu button to be able to continue, restart, or quit the game. Another point is that at some point (I believe starting around level 5), it starts lagging a bit; you could ask the AI to improve the optimization, since it lags a little.
Also, since your project has a multi-scenario structure, you could combine all of them into a single one to make it something unique, like a rogue-lite, where depending on your score the environment changes.
But of course, these are just suggestions! Keep improving your project, it turned out great.
