Space Intruder © 1980 Shoei.
Space Invader's clone.
Main CPU : Zilog Z80 (@ 2 Mhz)
Screen orientation : Vertical
Video resolution : 240 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 8
Players : 2
Control : 2-way joystick
Buttons : 1
Game's ROM.