One + Two © 1997 Barko.
Main CPU : Zilog Z80 (@ 8 Mhz)
Sound CPU : Zilog Z80 (@ 8 Mhz)
Sound Chips : YM3812 (@ 8 Mhz), OKI6295 (@ 8 Khz)
Screen orientation : Horizontal
Video resolution : 512 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 128
Players : 2
Control : 8-way joystick
Buttons : 3
Game's ROM.