PC-505 Submarine

Description
PC-505 Submarine is a Depthcharge variant. There are multiple game modes:
Two-Player Sea Battle - One player controls a destroyer at the sea's surface while the other controls a submarine. The submarine can score points by firing torpedoes at either the destroyer or a cargo ship that moves at a constant pace. The destroyer scores points by dropping depth charges which explode in close distance to the submarine.
One-Player Submarine - Similar to the two player sea battle game only there is no cargo ship to hit and the destroyer is computer controlled.
One-Player Destroyer - Similar to the two player sea battle game only there is no cargo ship to hit and the submarine is computer controlled.
Two-Player Night Sea - Similar to the two player sea battle game only the submarine is invisible except when firing a torpedo.
Two-Player Space A - Similar to the two player sea battle game only the water vessels are replaced by spacecraft. Also there is no cargo ship.
Two-Player Space A - Similar to the two player Night Sea game only the water vessels are replaced by spacecraft. Also there is no cargo ship.
