Alpha Denshi started off as a minor electronics company, and finished as a minor game developer.

Established in Saitama in July of 1980 as 'Alpha Denshi Kabushiki Kaisha' ( アルファ電子株式会社 ), Alpha were initially almost completely unrelated to the games industry.

Their very first release was Shougi (1982), a basic

Almost all of their early titles were distributed by other companies, allowing Alpha to form a good releationship with the likes of Sega and SNK.
Battle Field (1987), Gang Wars (1989), a scrolling beat’em up similar to Technos’s Double Dragon (1987).

Alpha made a surprise move in 1990, by focusing all of their output on SNK's Neo Geo. Magician Lord (1990). Ninja Combat (1990) was a under-rated scrolling action game similar to Gang Wars (1989).

ADK ( エーディーケイ )

hey were responsible for many of the machine's early titles, and the exquisite action / platformer Magician Lord deserves a special mention.