New York - Comic book publisher Marvel Entertainment announced on Wednesday that it has expanded its agreement with Japanese game developer Sega, to include the rights to develop and publish games based on Captain America, The Incredible Hulk and Thor. The deal follows on Sega's creation of an "Iron Man" game, slated to be released alongside the film next May. All of the new franchises will see games released alongside feature films, with "The Incredible Hulk" coming first in June 2008.