The concept is great!
I was quite baffled at the notion of a frog that can't jump in the land areas on the air pockets hahaha. I found the music and the gameplay nice.
I have some notes about the game. Some assets are rendering on top of the frog and the map causing some clipping. Also, some accompanying indicators to the oxygen level might be helpful in giving the feeling of urgency. Changes in animation such as struggling more or visibly out of breath and some urgency in the music might help in better communicating the feel.
Overall, I enjoyed the game. I see great potential in the game and the team. Keep it up!