Whats that new 2d arcade game everyone plays?

It's sort of like Capcom vs SNK 2 but I don't think it is because it has a ton of characters that aren't in the ps2 version I played before. It's got all the characters from Vampire savior, street fighter, xmen, etc. It's even got wierd characters like a tiny lego looking dude.

Whats the name of this game can someone help me out here.
Nope,no characters missing.

Pablo means Marvel VS Capcom 2 however that is an arcade game that was only released on the Dreamcast as a home version.