While Peter battles Brock and Marko, Harry arrives to help him with his Green Goblin technology. Brock attempts to impale Peter with Harry's glider, but Harry jumps in and is impaled himself. Remembering the symbiote's weakness, Peter assembles a perimeter of metal pipes to create a sonic attack, weakening it and allowing Peter to separate Brock from the symbiote. He activates a pumpkin bomb from Harry's glider and throws it at the symbiote. However, Brock, who became addicted to the symbiote's influence, leaps into the symbiote in an attempt to save it, and is killed along with the symbiote.
