You want to swim 600 feet down in the Atlantic Ocean. Press space to go down. When you are lower than 5 feet you will start losing air. You will lose more air the deeper you go. Press a to get air. You get more air at the surface. You will lose 5 points every time you press a. Press b to buy air when you are touching red or black. You will lose 25 points for black and 60 points for red. Red gives more air then black. The amount of air is proportional to how much air you have already compared to how much air you can have at max. Your max air is 150 if you have went less than 150 feet otherwise it is how many feet you have went. Try not to lose air because if you run out you will lose 300 points and get back your max air. Enjoy! Try to get a score of 3000 or more!
Griffpatch for the scrolling tutorial.