2 in 1 Eagle: Alpha Fighter + Head On © 1979 Data East.
Compilation of two old Data East games.
GAME ID: 91-13122
Main CPU: Zilog Z80 (@ 1.93356 Mhz)
Sound Chips: Discrete circuitry.
Screen orientation: Vertical
Video resolution: 224 x 256 pixels
Screen refresh: 60.00 Hz
Palette colors: 64
Players: 2
Control: 4-way joystick
Buttons: 2
Game's ROM.