Really awesome idea, trying to juggle all of the different abilities mapped to one key was challenging but super fun, really nice level design and the animation on the character felt really cool and fluid! Overall really great game! Did have a few bits of feedback though:
I had some issues with the gravity power, when objects collide with the player they tend to just knock the player really fast in a random direction, made some of the puzzles involving them overly hard.
Also I don't know if it was intentional or not but sometimes the gravity power would pull in objects from the previous screen and kill me on the new screen, was a tad frustrating.
If you ever did a post jam version where you get even more powers perhaps volumes in which certain powers get deactivated could be a cool mechanic to throw in, can be used as a puzzle element and as a way to stop the player getting overwhelmed with too many powers at once :)