DOOM multiplayer (Atari Jaguar) using the Jag Link
A demonstration of DOOM CO-OP on the Atari Jaguar via the Jag Link peripheral.
The Jaguar Version of DOOM features 2 modes that require the Jag Link (CO-OP), where you and a friend traverse through the main campaign of DOOM. and Deathmath, where you and a Friend hunt eachother down throughout any stage of your choosing, albeit without any enemies present.
Note: Now because the Jaguar version's networked multiplayer feature was one of the earliest examples of networked multiplayer on a consoel, it is unfortunately prone to network bugs and every few minutes it seems to crash and reset the level, but besides that, the game doesent really chug during co op, and there are modern day versions of doom that feature stable co op.
Alternatively, if you'd wanna play co op doom on an older console theres the option of the GBA port of Doom and the PS1 port, which are much more stable.