Progress! 8 complete rooms so far. Mostly tested and everything is assumed to be possible, however I'm not 100% sure overall. If you spot any cutoff (or more aesthetically pleasing ways to arrange the floor/muncher tiles), potential breaks, or things that look truly impossible, please do tell me so I can fix them
It's worth noting, this is meant to be a pit-difficulty puzzle level, so there may be things to trick you into thinking you have solved the puzzle... so, by all means, try and find the solution, and explain the route you would take if you'd like, good luck!
Here are the 8 rooms in order. Each room has fixed no vertical or horizontal scroll, and has you starting on the moon, and finishing by entering the door. Blue blocks are cement blocks (excluding the sloped ones, they're just regular slopes) and the yellow ones are munchers. You start room 1 small, and your goal is to finish room 8 caped, ready to fly as soon as you enter whatever room 9 is going to be.
Room 1: That's a regular turn block in the top left.
Room 2: That's a regular turn block above where you start.
Room 3: The note block and all the ? blocks are blocks that appear when you hit them from below.
Room 4: That ? block appears when you hit it from below.
Room 5:
Room 6: Those note blocks appear when you hit them from below. In the top right, there is a regular turn block, and a ? block that gives you a mushroom if Mario is small, and a cape feather otherwise.
Room 7:
Room 8: