Block Gal (c) 1987 Sega.
A ball and paddle game.

>>> TECHNICAL DETAILS
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Sega System 1 hardware
Game ID : 834-6303
Main CPU : Z80 (@ 4 Mhz)
Sound CPU : Z80 (@ 4 Mhz)
Sound Chips : SN76496 (@ 4 Mhz), SN76496 (@ 2 Mhz)
Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 1536
Players : 2
Control : dial
Buttons : 1

>>> TRIVIA
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Developed by Vic Tokai.

>>> DESIGNERS / PROGRAMMERS / STAFF
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Producer : Yakuza Sebiro
Designers : Sary Chan Papa, Abunai Kun!!
Programmers : Dynamic Ran, Gofukusen
Music : Shoochi Gun

>>> OTHER GAME RESOURCES
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Game's rom.