Published Aug 1979 by Marvel.
Newsstand Edition. "He Only Laughs when I Hurt!" Part 2 of 2. Guest-starring Colleen Wing. Story by Chris Claremont and John Byrne. Art by John Byrne and Terry Austin. Cover by Dave Cockrum and Terry Austin. How can the X-Men be expected to survive Arcade's sinister funhouse of death Murder World when their strongest teammate Colossus has been turned against them? Cover price $0.40.