Harold Osborn (Earth-2480)

Harold "Harry" Osborn is the best friend of Peter Parker, who was forcefully mutated into the Green Goblin.

Powers & Abilities
Regularly, Harry has no powers, besides the ability to change into the Green Goblin (which is involuntary). Only the Green Goblin has super powers.

Alternate Form: Much like the Hulk, Harry has an alternate, green-skinned form. Known as the 'Green Goblin', it looks demonic, with horns and spikes across its body. When incredibly angry, the Green Goblin form produces fire from its skin.

Super Strength: The Green Goblin is incredibly strong, able to crush cars and knock buildings down. Exactly how strong is unknown, but he rivals Spider-Man in strength.

Super Durability: Green Goblin is incredibly difficult to injure. He has survived trucks being thrown at him, and buildings fallen on him with mere scratches.

Healing Factor: On the rare occasion, he gets injured, he heals incredibly fast.

Functional Immortality: Although Harry is just as susceptible to death as any other human, the Green Goblin is immune to all disease and natural ailments, and doesn't age. The only way to kill the Green Goblin is to kill Harry.

Trivia

 * Originally, Norman was going to be the Green Goblin, but I decided not to go that route.