The TurboDuo (later rebranded as simply the Duo) is a fourth-generation video game console developed by NEC Home Electronics and Hudson Soft for the North American market.

Initially test-marketed in Los Angeles in October 1992 before a nationwide rollout in May 1993,[2] TurboDuo is the localized version of the Japanese PC Engine Duo, which was released in September 1991.

In the United States, the TurboDuo was marketed by Turbo Technologies, Inc. (or TTI) of Los Angeles, a joint venture of NEC Home Electronics and Hudson Soft.

Later, TTI replaced Dungeon Explorer with one of a variety of TurboChip titles, such as Ninja Spirit (Irem 1988) and Final Lap Twin (Namco 1989).

[4] Turbo, a superhero character, was the alter ego of Jonathan Brandstetter, who himself was based in part on real-life game developer and TurboDuo brand manager John C.

[5][6] Consisting of a three comic campaign that ran in issues of Electronic Gaming Monthly,[7][8][9] the stories featured Johnny opposing agents of the company "FEKA" (a thinly veiled parody of Sega) who were tricking children into buying their CD-based add-on instead of the TurboDuo.

[10] Reactions to the advertising campaign were negative, with Jonathan J. Burtenshaw of GameSpy descring them as "petty" and "overly confrontational," and further conjectured that it hurt TurboDuo sales.