I liked this! The visual aesthetic is great. The gameplay is cool and the concept of forming shapes to solve each platforming puzzle is super interesting.
I didn't play far because I was getting an odd bug (?) in the WebGL version where the jump height was sometimes enormous and sometimes pretty small. (I couldn't see any pattern to it, but apologies if this is an actual mechanic that I was missing somehow.)
For that reason I dunno if I was solving the puzzles as intended, cheating my way through with a glitch, or having a harder time than I was supposed to!
Really cool idea, though. Thank you for letting us play it!