PLAY INSTRUCTIONS :
1. Destroy attacking UFO-s for points.
2. Round ends after seven sectors.
3. Faster ship speed awards higher bonus at end of round.
4. Extra points awarded for passing through gaps blown in targets.
5. Passing over black hole momentarily disables ship.
6. Avoid meteors. They are indestructible
7. Bonus ship awarded for outstanding play.
8. Point values increase with each round.
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Sega G80 Raster hardware
Main CPU : Zilog Z80 (@ 3.867 Mhz)
Sound Chips : Discrete circuitry
Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 128
Players : 2
Control : 8-way joystick
Buttons : 2
Released during May 1981.
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Destroying enemies : 100 points X round number.
End of round bonus : Distance travelled.