Confusingly, Sega released this game under several different names. In Japan, it was initially released as Man TT in August 1976, which was then released in North America as Fonz, the version best known in the region. In addition, there was yet another version of the game released, called Moto-Cross.
The game (all three versions mentioned above) is a motorbike-based adaptation of Sega's car driving game Road Race, released in early 1976.
Like Road Race, Fonz uses a pseudo-3D, third-person perspective, with scaling.