Interesting little platformer. The biggest criticism I have is that you don't have to engage with the main mechanic that much! I wanted to have to kill more enemies and try and manage my health, but it was fairly easy to avoid them, especially with the floaty gravity. I'm kind of meh on the floaty gravity, but I think it can be made to work. It made it interesting anyway. Finally, I found it kind of annoying how little the enemies communicated to you. They seemed to each have a random speed, and a random amount of health. If those were communicated to the player better via color or something I think it'd be really beneficial.
Still a fun little game, played to the very end, score of 12711!