Really interesting mechanic!
Good feedback on enemy hits, nice visuals.
The mechanic can be hard to understand at first, so died a lot of times in the beginning because I didn't really get it at first, but after a few tries I was flying around!
I did not like the farting noises that the character makes when teleporting, feels unnecessary childish.
I think I finished the game, I got a Game Over screen twice after defeating the one-eyed-double-shield-monster. But I assume that means Game finished :).
Overall great job!