In the SnoBall Cafe Derrick uses a mop to fend off the CyberWhacker zombie. He then runs into Chompsky's office, slams the door, and the same mop is now leaning in the corner.
In the old hallway at the Zombie Control Facility, when Keeper Ellis turns his head toward the camera, both camera and cameraman are reflected in Ellis' sunglasses.
When the Zombie Control Force van arrives at Ace's house, as Stanley walks by the side of the van, the camera and cameraman are seen in the reflection.
In the new hallway at the Zombie Control Facility, the reflection of the tripod can be seen in the window.
In the receiving area at the Zombie Control Facility, the shadow of the Boom Mic can be seen on the ZCF van door.