The X-Men best Hedgehog and follow Marsh and Mastermind deeper into Yui's laboratory.

Cast: Troy Baker, Steve Blum, Cam Clarke, Jennifer Hale, Ali Hillis, Aya Hisakawa, Katsunosuke Hori, Haruhiko Jô, Rikiya Koyama, Mary Elizabeth McGlynn, Toshiyuki Morikawa, Danielle Nicolet, Scott Porter, Stephanie Sheh, Yukari Tamura