Fun!
I like the concept. Very fun. It felt a little rough in terms of polish though.
I disliked how nothing felt solid. Maybe some of the enemies should be solid or hurt you when you touch them. And getting hurt could stun or knock you out of the air so it feels more like getting hurt rather than getting an arbitrary stat reduced.
Regardless, it's still a fun game. Keep making games and getting better!
PS: Do I detect a fan of Spelunky? The art style really reminded me of it.