The exclusivity was minor, but the PKG format saved the DLC from extinction. For that, the PS3 version is the definitive way to play the original release.
When Marvel Ultimate Alliance 2 launched in 2009, it featured a robust roster, but the most coveted heroes and villains were locked behind downloadable content. Unlike modern games where DLC is often permanent, Activision released the as a limited-time offer. Release Date: November 5, 2009. marvel ultimate alliance 2 ps3 dlc pkg exclusive
for Europe) to ensure the characters appear in the Hero Menu. Important Note on Availability This DLC is officially unobtainable The exclusivity was minor, but the PKG format