The Little Black Book: Part 1 - S3-E16
Visible crew/equipment: In both part 1 and 2, when the KAOS agents are staking out Max's house, a crew member is reflected on the frame of their car's windscreen.
The Little Black Book: Part 2 - S3-E17
Visible crew/equipment: When Max and Sid are talking to the CONTROL lawyer, a square reflector screen is reflected in the CONTROL lawyer's glasses.
The Wax Max - S3-E20
Visible crew/equipment: When an arrow is fired at the boat in the Tunnel of Love scene, the wire attached to it is visible.
Visible crew/equipment: When Max and 99 are trapped in the room with the hatch that leads down to the Guru's chamber, the filmmakers didn't bother to make it seem like a giant hole in the ground, and they also didn't bother about the floor of the set being about ten centimetres below the hatch.
Visible crew/equipment: In the motorcycle joust sequence, when the Purple Knight falls off his bicycle, his helmet flips up and you can see it's a stunt double - the Purple Knight's beard is gone.
That Old Gang of Mine - S3-E10
Visible crew/equipment: When the Turk is breaking into the palace, he pushes the window and it just swings open, since it is unlocked. However, you can see hands belonging to a crew member pulling the windows open to make way for the gag.
Ice Station Siegfried - S5-E13
Visible crew/equipment: Anytime the group of spies is walking out in the snow you can see the wall of the set that is supposed to look like fog.
Visible crew/equipment: When Max and 99 have reached the mansion, they both get out of the car to look in the trunk. As they start walking, some lightning occurs. If you look up at the top, you can see where the fake sky ends and the visible back of the stage begins.
Visible crew/equipment: Lights are reflected in the aide's glasses when Max and 99 are talking to him on the ground.
Visible crew/equipment: When Siegfried throws the cup into the air and Doctor T holds it up with his force field, a wire is visible holding the cup in the air.
Witness for the Persecution - S3-E3
Visible crew/equipment: When Doctor Baskum demonstrates the cube of safety, a moving boom mike pole is reflected in the glass of the cube.
Witness for the Persecution - S3-E3
Visible crew/equipment: Set lights are reflected in Doctor Baskum's glasses when he and Max are talking in the kitchen.