Super GX © 1980 Nichibutsu.
Clone of Moon Alien.
Main CPU : Zilog Z80 (@ 3.072 Mhz)
Sound Chips : Tone generator and discrete circuits
Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.61 Hz
Palette colors : 98
Players : 2
Control : 2-way joystick
Buttons : 1