Spider-Man 2 is a 2004 action-adventure video game, based on the film of the same name. Published by Activision, the console versions were developed by Treyarch, while the others had different developers and are drastically different as a result. The game is the sequel to Spider-Man (2002), itself based on the film of the same name. The Treyarch-developed versions are considered a landmark title in the industry for being the first superhero video game to incorporate a full open world design. All versions of the game closely follow the film's plot, but expand upon it by including scenes and characters not featured in the film. Set two years after the events of Spider-Man, the game finds Peter Parker struggling to manage both his personal life and his duties as Spider-Man. When scientist and Peter's Dr. Otto Octavius becomes the diabolical villain Doctor Octopus after an accident, Spider-Man must stop him from recreating a dangerous fusion power experiment. Tobey Maguire, Alfred Molina, Kirsten Dunst and J. K. Simmons (PSP version only) reprise their roles from the film, as Spider-Man, Doctor Octopus, Mary Jane Watson and J. Jonah Jameson, respectively, while Bruce Campbell, who played an usher in the doors of Mary Jane Watson's show, narrates the game.