Visible crew/equipment: During the performance of "Gotta Get A Gift", there is a handheld camera shot where the turtles are walking towards the camera singing the chorus while the camera moves around them. Just before the camera cuts to another shot, a stage light can be seen in the background to the left of shot, behind Michelangelo. Additionally, two shots after this, the same stage light can be seen again in the far background and can also be seen right at the start of the shot after that for a brief moment.
Revealing mistake: When the doctor is cutting the forehead, a red tube to release fake blood can be seen behind the scalpel. (00:30:12)
Revealing mistake: Most of the police cars are late model Ford Sierras, but any police car that crashes has been substituted for a much older early model Sierra.
Continuity mistake: Mr Sullivan gives the stolen snow blower to his ex wife's husband for safe keeping, suggesting a tarp in the back of the garage. In a subsequent scene the snow blower is back in Sully's pickup for all to see.
Continuity mistake: When Officer Muldoon shakes hands with the girl his hand is on top then instantly on the bottom.