1. Navigate your diver through hurdles of sea creatures while trying to keep your air supply full. Once you run out of air, you die!
2. Collect air tanks from the submarine to stay alive.
3. Each air tank colllected adds 4 seconds to your air supply.
4. Each sea creature you collide with subtracts 1 second from your air supply.
5. Collect the Power Sled to enter a hidden level and gain bonus air supply.
6. Use the arrow keys to move the diver up, down, forward and back.
7. The game starts with 20 seconds of air supply.
8. Try to get the high score!