Batman Unlimited: Monster Mayhem

The film opens with Solomon Grundy and Silver Banshee escaping from Arkham Asylum on Halloween Night. They hijack a civilian's car and get chased by cops. They lose them, but Nightwing (Dick Grayson) sees them when Green Arrow appears. Silver Banshee sees them and attacks with her sonic screams while they dodge. Batman and Red Robin drive up behind them in the Batmobile, but Silver Banshee screams in the tunnel to make rubble fall and block their path while Nightwing and Green Arrow follow them on their motorcycles. Scarecrow throws fear gas balls in Nightwing's and Green Arrow's faces to stop them. Chagrined by Banshee and Grundy's joyride, he takes the wheel and takes them to their set meeting spot. After the intro and title, a reporter congratulates Cyborg for finding a gem called the "Rose Stone" that will be displayed in the museum's Inca exhibit. Then a video game designer named Gogo Shoto is shown developing a game where you can be Batman. His assistant, Ana, notifies him that she's leaving for the day. She appears to come back to attack him, and Gogo tries to hide only to find the real Ana on the floor knocked out. He runs to a room where he puts up a Batman billboard to call him. The fake Ana breaks in saying that she's kidnapping him, but Batman arrives on the scene. The fake Ana shapes her arm into a hammer to knock Batman away, and then reveals herself to be Clayface and takes Gogo away.