'The Atari Jaguar featured many ports. Among them was a COM I/O port capable of networking up to 26 Jaguar consoles for multiplayer play, or linking to the Atari Lynx as a specialized controller. Both features were never utilized, but eventually would be features found in future videogame consoles.'
Didnt the game DOOM make use of the console link feature,as well as maybe one or two other games? Im pretty sure DOOM did in any case.