https://web.archive.org/web/20150924100219/http://www.sega-16.com/2006/09/retroinspection-mega-drive/

Retro Gamer spoke with Mr. Nagumo, the Team Manager of SOJ CS Product PR, and asked many, many questions, few of which were answered. When asked if, due to the impossible odds stacked against them, Sega had considered becoming a developer for either the Famicom or PC-Engine, his answer was blunt. “No, we didn’t.”

Even so, Sega staff were curious about the Famicom. In two separate interviews (GameWeek and TNL) Yuji Naka admitted to making Famicom games run on the MD. His comments, amalgamated, were, “Oh my. [laughs] How do you people know about that one? Well yeah, actually I did. I once made a Famicom emulator for the Mega Drive. It was something fun to amuse myself with at the time. I couldn’t play every game with it. But it was fun to call people over and show them Mario running around on a Mega Drive.”

Lui c'était un vrai ça doit être un des premiers émulateurs NES j'imagine.