Sigma, Inc.

Background
Sigma, Inc. (formerly Sigma Enterprises, Inc.) was originally formed in 1978 that publishes video games and arcades.

(1980-1998)
Logo: On a black background is the text "Arial Narrow" in a condensed font.

Variant: Sometimes, a logo appears on the title screen.

Technique: None.

Music/Sounds: None or the theme of the game.

Availability: Seen on every game of the period, such as Vegas Connection and Musashi no Bouken.