Mahjong Shiyou (c) 1986 Visco.

>>> TECHNICAL DETAILS
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Main CPU : (2x) Z80 (@ 4.608 Mhz)
Sound Chips : AY8910 (@ 1.152 Mhz), MSM5205 (@ 576 Khz)
Palette colors : 256

>>> OTHER GAME RESOURCES
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Game's rom.