That's dope! I should have thought of that, yes having oxygen recovery increases as you stand still is brilliant. Sorry about the UI problems, faced some issues with the game build that didn't exist in unity.
Viewing post in Reincarnation of a Lumberjack jam comments
I had the same UI issue where my Unity was set to 16:9 but the WebGL build was 16:10, so my button on the right also slid off the screen. With help from some other people I fixed it by changing my panel that contains the controls to be right aligned instead of centered (the default), then right-aligning the controls underneath that.