"With great power comes great responsibility."

In one world those words created a hero but in another it created a villain.

The lose of his Uncle drove Peter Parker to believe that to have responsibility he'd have to take power.



As Spider-Man he took over the criminal underworld of New York, forming alliances with his genius old professor Dr. Octavius and with his flame the ambitious Black Cat. Soon it no one could touch him not in court thanks to his lawyer Wilson Fisk, and not in the streets either thanks to his skill.



Norman Osborn tried to create someone to tackle the supervillian, like the Scorpion, Electro and even himself, but they where put on the run when Osborn's Goblin persona became unstable, with the only means of managing formerly produced by OsCorp, now re-branded Parker Industries. He was effectively shacked by Spider-Man if he didn't wish to loose his sanity or be on the run for his attacks on a "upstanding rags to riches philanthropist" Peter Parker.



This drove him and his allies to the old adage: "Fight fire with fire." Or in this case: Fight Spider-Man with Spider-Man. Bankrolled by Jonah Jameson they build a window in another world where Spider-Man they knew was instead a valiant if down on his luck, hero.



He would have to do as their own Spider-Mans enforcers where closing in and Mysterios defenses would not hold them off for long...