|Arcade system(s)||SG-1000 Based|
Also known as Serizawa Hachidan no Tsumeshougi Oushou.
Ported to the SG-1000 console in 1983.
The SG-1000 hardware is said to have been created in 1981, but not released as a console until 1983.
The arcade release of Oh Shou is an example of an early use for the hardware.
The main differences from the console version are: the game is timed, 4 buttons are used, the difficulty can be selected, and the monitor is vertical.