Spider-Man 2: Enter Electro is the second PlayStation game to feature Spider-Man, and also serves as the sequel to the 2000 video game Spider-Man. This game follows the web-slinger as he attempts to stop his old enemy Electro from obtaining a source of power called the Bio-Nexus Device. Game bosses included Hammerhead, Lizard, Sandman, Shocker and the exclusive charged-up Hyper-Electro. The game was originally released on August 26, 2001. Following the September 11th attacks, the original game was pulled from stores and re-released on October 17, 2001.
UPDATE (05/28/15): This version has been leaked by a Spanish YouTuber called "ElVicioGamer", the link of the game is in the description, enjoy guys ;)
An Iso version of it is available to download for emulation:
September 11, 2001 edits
The original version of the game was pulled after the September 11, 2001 attacks to change the final battle. Originally the battle was atop the North Tower of the World Trade Center, but since the towers were destroyed on September 11, the game was re-released with a different ending. Originally, Electro shouted "Top of the world man!" as he departed his battle with Spider-Man for the towers, giving Spidey the clue he needed to track him down for the final boss battle, but in the re-released game, he just happens to guess correctly. This was removed because the game's original ending takes place atop the World Trade Center towers when the game was being developed and it was removed because of the towers' destruction on 11 September 2001. Several levels were renamed in the re-release version of the game:
"Crash Flight!" to "Wind Tunnel"
"Downroad Spiral" to "The Corkscrew"
"Aces High" to "The Gauntlent"
"Top of the World" to "The Best Laid Plans