thanks!
yeah, the pieces types got a bit rushed in progression wise, i didn't really have the heart to make a lot of levels for a deeper player understanding of them, and level 30 was kind of a proof of concept at what a really hard level can be more than anything else.
Glad you like the game, a lot of people love the world select, i feel like gameplay inside the menus isn't as present in games as it's liked by the players.