Pastel Gal (c) 12/1985 Nichibutsu.
An earlier mahjong game.

>>> TECHNICAL DETAILS
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Main CPU : Z80 (@ 2.496 Mhz)
Sound Chips : AY8910 (@ 1.25 Mhz), DAC
Screen orientation : Horizontal
Video resolution : 256 x 224 pixels
Screen refresh : 60.00 Hz
Palette Colors : 32
Player : 2
Control : mahjong keyboard

>>> OTHER GAME RESOURCES
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Game's rom.
Machine's picture.