Lochjaw

Lochjaw was released for the Atari 2600 in early 1981.

Gameplay
The player takes control of a diver with the goal of collecting the diamonds around the maze while dodging the shark that swims across the screen repeatedly. The level is cleared once all of the diamonds are collected, advancing the player to the next stage. Beware that the shark can also eat the diamonds, costing you points. It is also possible that the Loch Ness Monster will chase you and is quite relentless. The only way to get rid of him is to lead him outside one of the corners of the screen.

The game was poorly received for being a blatant Pac-Man clone, having a lack of variety and no method of attack or defense for the player.

Price
Due to an extremely short shelf lifespan, Lochjaw is currently valued at $1,500 complete and nearly $750 loose.