Crazy Blocks (c) 1983 Kiwako.
A puzzle game.

>>> TECHNICAL DETAILS
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Main CPU : Z80 (@ 2.578 Mhz)
Sound Chips : (2x) SN76496 (@ 2.578 Mhz)
Screen orientation : Vertical
Video resolution : 224 x 240 pixels
Screen refresh : 60.00 Hz
Palette colors : 16
Players : 2
Control : 4-way joystick
Buttons : 1

>>> TRIVIA
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Licensed to ECI.
This game is also known as 'BlockBuster' and is known in Japan as 'Mr. Jong'.

>>> OTHER GAME RESOURCES
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Game's rom.