Source: A poster on the NeoGAF forums reported seeing an Entertainment Software Rating Board listing for Marvel vs. Capcom 2 on the Xbox 360 ... and not even for the PS2 and Xbox.

Marvel vs. Capcom 2 was later ported to Dreamcast, PlayStation 2, and the original Xbox. The Dreamcast version is considered to be the most faithful to the arcade experience, while both the PS2 ...

While Marvel vs. Capcom 2 would have done better to include the online play it originally intended to have; it's still one of the best 2D fighters of the last five years -- no matter its age.

Fans of the off-kilter action found in the previous versus games will surely be pleased with Marvel vs. Capcom 2, as it represents the first major set of changes the series has ever seen.