

800 Fathoms © 1982 U.S. Billiards.
An old horizontally scrolling shoot'em up with a vertically scrolling background. The player has to guide a submarine armed with torpedoes and missiles through five levels while fighting different underwater terrors. At the end of each area the boss-submarine appears.
Cabinet dimensions: 67.5'' high x 25.5'' deep x 28'' wide
Weight: 235 lbs
Main CPU: Zilog Z80 (@ 3.072 Mhz)
Sound Chips: General Instrument AY8910 (@ 1.78975 Mhz)
Players: 2
Control: 8-way joystick
Buttons: 2

Released in January 1982 in the USA.
800 Fathoms is known outside USA as Mariner.