Overkal

The warranty card has an address for a manufacturer named Overkal or I.S.S.A.

Odyssey cartridges contained a set of jumpers connecting the different Odyssey circuits together to play the games. Here, the cartridges were replaced by a set of five push-buttons connecting the circuits exactly as the cartridges did. Although Odyssey could play more games with additional cartridges, this clone can only play the games hard-wired by the push-buttons.

Due to the limitations of the push-buttons, Overkal played seven games: Tenis (Tennis), Futbol (Football), Esqui (Ski), Ataque submarino (Submarine), Persecution (Cat and Mouse), Carrera espacial (Analogic), Ruleta (Roulette), and Tenis de Mesa (Table Tennis). Seven overlays of two sizes were provided. All the text originally written in English has ben translated into Spanish.