Oni Goblin Mask

"Norman Osborn. Brilliant scientist, military research. But he was greedy. Misguided."
―Doctor Octopus

"I've watched you from deep behind Norman's cowardly eyes. Struggling to have everything you want, while the world tries to make you choose. Gods don't have to choose. We take."
―Green Goblin to Spider-Man

Doctor Norman Virgil Osborn is a scientist, and CEO of Oscorp. Once he experimented on himself with an incomplete enhancement serum, Osborn developed an alternate identity, the Green Goblin. With Green Goblin in control, he fought Spider-Man, until he perished by being impaled with his Goblin Glider.

Osborn company was suffering due to him not meeting the deadline for a powerful yet unstable formula for a performance enhancer, which was supposed to give enhanced strength to individuals. However, the unfinished formula also came with the probable cost of sanity. In desperation, Osborn took the formula himself, which increased his strength