Calipso © 1982 Tago Electronics.
You play a diver who is trying to get a treasure. Hold Fire and push in the direction you want to shoot, but you will be unable to move while doing this. Shoot the sea animals and the other player. Try to get the treasure at the bottom and return it to the boat at the top without getting attacked by sea creatures -- all before your air runs out.
Main CPU : Zilog Z80 (@ 3.072 Mhz)
Sound CPU : Zilog Z80 (@ 1.78975 Mhz)
Sound Chips : (2x) General Instrument AY8910 (@ 1.78975 Mhz)
Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.61 Hz
Palette Colors : 99
Players : 2
Control : 8-way joystick
Buttons : 1
Game's ROM.