List of TurboGrafx-16 games - Wikipedia
Fox Sports (United States) - Wikipedia
Ubisoft's Madden for Game Boy just arrived from an alternate
John Madden Football (1994) - MobyGames
John Madden News, Photos, Quotes, Video
Pro Football Journal: All-Madden Teams
List of Madden titles, Madden Wiki
Dual-threat quarterback - Wikipedia
John Madden Football (1990) Sega Genesis Gameplay HD
John Madden Football (1988 video game) - Wikipedia
List of Madden titles, Madden Wiki