Thanks!!! I made the oxygen like that because each level is an individual sprite with the unique colors and all. There was actually originally going to be background music but I decided I liked the high tension gameplay with just the ambient breathing more, and then the map was just designed with the idea in mind of "Let's make a map where there's lots of opportunities for risk and reward to cut down your time" because I liked the idea of having the speedrun potential for the map, so its very intentionally possible to go real fast!!!