User blog comment:SilverPlays97/Official Sonic & MegaMan Crossover!/@comment-4050385-20120711215821/@comment-477304-20120711221232

There is a crossover game between Sega, Namco Bandai and Capacom for release in October, though it doesn't look like Sonic will appear in the game. It also looks like it may be a Japan only game.