Fan Casting How the Green Goblin entered the MCU.

As Green Goblin, Osborn became the first great enemy of Spider-Man. Both alters eventually discovered that Spider-Man's identity was Parker and became enemies with Mary Jane Watson. In their final battle, he was trying to kill Spider-Man and rule New York. Meanwhile, in another universe, Doctor Strange tried to cast the Runes of Kof-Kol to make everyone forget his Peter Parker was Spider-Man. However, the spell failed and connected to other realities in the Multiverse, bringing people who were aware of Spider-Man's true identity from those to their universe. As time was scrambled, people who were originally dead in their universes were brought alive to this one, one of them being Octavius. Upon arriving in the other universe, Osborn. Upon entering the other universe, Osborn was under the control of Green Goblin as he attacked the Alexander Hamilton Bridge by throwing a Pumpkin Bomb in the middle of the bridge.