Project X Zone's First Trailer AKA Capcom X Namco Bandai X Sega in action. 04.21.12 - 3:46 AM
Just last week, Project X Zone for the Nintendo 3DS, a triple crossover featuring characters from Capcom, Namco Bandai and Sega, was announced. As shown in the Nintendo Direct trailer below, the characters pair up in battle according to the list in the previous article.
It looks like a fighting game, but it's actually a strategy RPG. Really.
Project X Zone is due out sometime this year in Japan.