Congratulations on your first jam submission!
:)
I would suggest 2 changes (after the jam):
1) jumps feel better when the player goes up quicker than they fall down (we want to be in the air quickly, but we want to have time to decide where to land); and
2) consider adding a hint about how to get past the "wrench" obstacle - I got stuck there, and I wasn't sure what to do (is it a well timed jump? am I missing an ability or an upgrade? is there a different, secret path? etc.).