Dottori-kun (1991)

This is a game that Sega used in-house to test the hardware it was developing during the late 1980s through the early 1990s. It is a simple game that lacks sound and the familiar player prompts (e.g. "insert coin"). It was never fully developed nor intended to be released to the public.

• Release Date: January 1, 1991
• Developer: Sega Enterprises, Ltd.