Quentin Beck is a special effects artist who became Mysterio.
He first appears without a secret identity, trying to discredit Spider-Man as a fake with no actual powers and gain fame for himself. However, this event includes Beck releasing several criminals, including Herman Schultz, who threaten the crowd, getting Beck in trouble with the law. Later he appears as Mysterio, posing as an alien who aims to conquer New York City with his army of robots, although this plan is foiled by Spider-Man. He then lures Spider-Man into a "Funhouse of Doom" hidden in an apartment, where he puts him through several challenges before slipping away again. Spider-Man eventually discovers Mysterio's identity when he stops the villain from robbing a shop. In this game, Beck wears a suit that looks like the traditional Mysterio costume (sans helmet and cape) while trying to discredit Spider-Man, while his Mysterio costume consists of the familiar "fishbowl" and a flowing robe bearing a large M on the chest. Also in the game, when he is fought in the store, his boss meter appears to have three bars - creating the illusion that he will be an extremely tough boss - but he is easily knocked out with one attack.