An amazing game! I was stuck at first with the "only 1" level, but after that I started to understand and, without having finished yet (I just crossed the 33=... equation in the main map) I can say that this is a very very enjoyable---and of course challenging---adventure. I liked very much the menus, and also the music. Congrats for having developed this brilliant proposal.
PD: I hope to have some free time soon to get to the end of the game!