I think only two games are in the running to be considered as "defining" the Jaguar and those two would be Alien Vs. Predator and Tempest 2000. Doom, Wolfenstien 3D, and Rayman would probably be the next three in the running, but those two are the definite tops when most people thing Jaguar.
Oops, posted under my wife's account. I forgot she logged in for the high score club.
JeremiahJT