This cartridge offers 4 sea battle games (sea battle, submarine, destroyer, night sea) and 2 space duel games (space A and space B).

Sea battle games are inspired by Sea Wolf arcade game, and Space games seem to be inspired by an obscure 1979 Irem arcade game called Space Beam.

SEA BATTLE
Player 1 control the submarine and must hit the destroyer (controled by player 2) or the cargo (moving automatically from left to right). Players can only shoot one torpedo/depth charge at a time...

NIGHT SEA
Same game but players are invisible until they shoot a torpedo or a depth charge.

SUBMARINE / DESTROYER
These two games are one player only. You control the submarine or the destroyer and must destroy the enemy (submarine or destroyer) controled by the computer.

SPACE A & B
These very simple games are in fact based on the same principle as Sea Battle. Submarine and destroyer are replaced by strange blocky spaceships shooting long and slow laser beams.
In Space B, space ships are invisible unless the shoot a laser beam