Wow, really cool. I love the music and how the level progression is synced to its ramping up. Resisting and delaying the likely inevitable takeover of the protagonist's mind is a great fit for this kind of gameplay and we love a cocky evil hypnodom (and a crux. Don't see too many of those).
It took me until seeing one of the other comments to realize that the shapes on the blocks corresponded to what shape you needed to put them in (i may be stupid), i have my assumption for what shape the arrows are supposed to go in but i haven't been able to actually accomplish it amongst the pace and the chaos of everything else so i ended up just ignoring those entirely. I'm up to level 5 so far. Really wanna see more of the dialogue though, so probably i'll be coming back to this one.