Zigzag © 1982 LAX.
Pirate version of a Dig Dug conversion kit.
Main CPU : Zilog Z80 (@ 3.072 Mhz)
Sound Chips : General Instrument AY8910 (@ 1.78975 Mhz)
Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.61 Hz
Palette Colors : 98
Players : 2
Control : 4-way joystick
Buttons : 1
Game's ROM.