Very fun entry!
It's amazing how much you can do with so few frames of art especially when it all goes together! I think the game looks and plays great. I had a lot of fun seeing how far down I could go and get back up with only timing myself; no clock or phone, etc.
Kinda makes me relive seeing how long we could hold our breaths underwater as kids too. Great idea and execution!
I only found one bug after you Retry once or twice, it initially resets the Max oxygen to 20 but I think the variable in the background is not reset because once you collect more air your oxygen shoots up to what you ended with last time but you don't actually have that much air left.
