Space Invaders Galactica (c) 1979.

>>> TECHNICAL DETAILS
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Main CPU : 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

>>> TRIVIA
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Original releases :
Namco's Galaxian (October 1979)
Licensed releases :
Midway's Galaxian [Upright model] (December 1979)
Midway's Galaxian [Cocktail Table model] (December 1979)
Nichibutsu's Moon Alien [Upright model]
Nichibutsu's Moon Alien [Cocktail Table model]
Unofficial releases :
CGI's Galaxian Part 4
Galaxian Part X
Galaxian Turbo
Space Invaders Galactica
Zaccaria's Super Galaxians
Subelectro's Swarm
PETACO's Zero Time

>>> OTHER GAME RESOURCES
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Game's rom.