This is a really good idea to get an emotional response to the player. Right when I saw that I was losing oxygen I wanted to turn back. I'm not sure on the point of the game though besides dying. I think adding a game mechanic where you sacrificed some of your oxygen to help the dog stay alive would make this even better.

This is fun little game. My only complaint is it does play a little slow. Other than that great game.

Good AI system. Pretty much plays different every time. Though every now and then my marker wouldn't show up but still was there. Other than that good first game.