Audio problem: Right after Bert kills the second graboid he gets on the radio and says "we killed that mother-humper". Val replies "...be advised there are two more mother-humpers". However Val's lips don't seem to be saying "humper". This occurs even in unedited versions of the film. (01:01:40)
Audio problem: At the climax of the film when the Turtles are about to face Shredder for the first time, Raphael says, "I got him" and then runs to fight. When Raphael falls to the ground, his pair of Sai hit the ground but make no noise. There should be a metallic sound against the rooftop. (01:19:00)
Audio problem: Just after Arnie accepts the cab driver's offer and the other one complains, Arnie's driver gives him the finger and says something like, "Eat this", but his lips don't match what he's saying. (00:52:45)
Audio problem: Near the end, just as Robocop2 has locked onto Robocop, Lewis holds up a container of nuke, she starts to say something, but the editor decided to cut that bit out and move on.
Audio problem: When the very first song ends during the Festival scene, keep an eye on the guitarist to the right. His hand is still moving but no sound is coming out of his guitar. (00:56:55)
Audio problem: When the Predator is about to shoot Gary Busey, just before Danny Glover blows the door in, listen. The actor playing the Predator is counting to three before the explosion, preparing himself for the effect. Easily heard if you turn your tv up. (01:16:15)
Audio problem: Right after the doctor falls in the basement he is talking about how no spiders are going to be there. Then he keeps repeating "Oh s***" but it looks like his lips are delayed.
Audio problem: When Sharon curses Steve Rogers when he leaves her stranded in Rome she says, "Damn, jerk!", but her lip movements don't match the words.