For many fans, these ISO mods represent the "ultimate" version of arcade-style wrestling. They combine the technical stability of the PS2 era with modern content:
The phrase typically refers to a fan-made modification (mod) that imports the roster, arenas, and aesthetics of modern games like into an older PlayStation 2 wrestling engine, most commonly WWE SmackDown! vs. Raw 2011 While an official wwe 12 ps2 iso 19 better
The official was never released for the PlayStation 2; it was the first main-series title to be exclusive to the then-next-generation consoles like the PlayStation 3, Xbox 360, and Wii. However, the "WWE '12 PS2 ISO" you are referring to is a popular community-created mod typically built on the engine of WWE SmackDown vs. Raw 2011 (the final official PS2 entry). WWE 12 PS2 ISO 19 Better: The Ultimate