This game is set below the sea, and follows a diver's attempts to recover three treasures from the sea bed. Several sea creatures attempt to prevent him from doing this and attack him. The diver is armed with a harpoon gun with which he can shoot the various nasties.
On later screens, sharks appear who eat through the diver's oxygen pipe, piranhas who go straight for the diver, crabs which cannot be shot. Even more nasties await you on higher levels, and since there are 32 in all, this game will last a long time!
The graphics are good, as are the sound effects and the keys used are very sensible. Overall, a very good game.