Nunchackun (c) 1985 Taito.

>>> TECHNICAL DETAILS
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Board Number : M6100130A
Prom Stickers : ???
Main CPU : Z80 (@ 4 Mhz)
Sound CPU : (2x) Z80 (@ 2 Mhz)
Sound Chips : AY8910 (@ 2 Mhz), (2x) DAC (@ 2 Mhz)
Screen orientation : Vertical
Video resolution : 240 x 256 pixels
Screen refresh : 60.00 Hz
Palette Colors : 256
Players : 2
Control : 4-way joystick
Buttons : 2

>>> TRIVIA
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'Nunchackun' is a play on the word 'nunchaku', here it's meant to be a name like 'Mr. Nunchacku', since '-kun' is like 'Mr.'.
This game was a prototype (never released) developed by Kaneko for Taito.

>>> OTHER GAME RESOURCES
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Game's rom.