I gotta say for some reason the first thing that caught my attention was the oxygen bar UI, it's beautiful i gotta say that, i really love UI design so of course i'm going to love this one :D Now about the game, it's simple and quick, it took me a little to beat it but it was still nice for a short game :D Love the pixel art as well and overall a cool game, it's too short that's mostly my only complaint but i know you couldn't make it longer due to the time limit so i understand of course!