Navigate an underwater cave system in your nippy little submarine in the search for long lost treasure.
You need to find special keys and tokens to be granted access to blocked sections. You may even need to leap out of the water to succeed in your quest.
Left and right arrow key to rotate your sub.
Up arrow key to accelerate and down arrow key to reverse.
Press space for a speed boost.
Find the treasure and bring it to the surface.
Try to find all the stars. Some are in hidden places.
