It's really sad on how they can combine two of Marvel's greatest super heroes and make a horrible game out of it and its no surprise that its been created by LJN.  I really wished that Nintendo could've licensed someone else to make this crossover because LJN is known for screwing up so many games for the NES, especially from famous movies and comic book heroes.  The cover of the game cartridge, title screen, and the fact that its Spider-Man and the X-Men (Cyclops, Wolverine, Storm, and Gambit) working together on one game misleaded every child into thinking how exciting the game would be, until they start the first level of the game.  The graphics weren't the worst, but the game looks like it belong to the NES or Sega Master System so there was no excuse on that department.  The gameplay totally sucks you know what.  Attacks are not very responsive and the game itself is unfairly difficult (remember that there are no continues in this game).  I love fun challenges, but this game went beyond impossible (this game is for kids so why is it so hard?).  I rented this game a few times back in 1993 and I was annoyed each time (I never finished the first level for each hero in Murder World level) so that is one of the video game memories I wish not to relive.  Like Spider-Man and The Sinister Six and NES version of The Uncanny X-Men, this is one Marvel Comic licensed game not worth playing and I can't believe that someone on Amazon is selling it for such a high price (no self respecting gamer would even buy this crap for a penny).  Please stay away from this horrible game.