Bone Crusher © 1985 Japan.
This game is a bootleg of Knuckle Joe.
Main CPU: Zilog Z80 (@ 5.5 Mhz)
Sound CPU: Motorola M6803 (@ 894.886 Khz)
Sound Chips: (2x) General Instrument AY8910 (@ 894.886 Khz), (2x) MSM5205 (@ 384 Khz)
Players: 2
Control: 8-way joystick
Buttons: 2
Bone Crusher was released in April 1985.