How to play:
Move the submarine using the buttons of the control panel or the ones on your keyboard. Your goal is to collect all the keys by touching them, but be aware and avoid the sharks. Once you'll have find the treasure casket stay put and click on it to win.
Commands:
- W - move foward
- Q - dive
- E - emerge
- A - turn left
- D - turn right
- S - move backward
Otherwise you can always choose to make the submarine follow your mouse.