Revealing mistake: When three of the turtles are playing Trivial Pursuit and Leonardo runs in to announce Splinter is alive, you can see a wire coming out of Raphael's shell. I guess it's for the animatronic head, but it's visible. (00:59:30)
Teenage Mutant Ninja Turtles (1990)
Ending / spoiler
Directed by: Steve Barron
Starring: Sam Rockwell, Elias Koteas, Judith Hoag, Josh Pais, Michelan Sisti, David Forman
Splinter kills Shredder by causing him to fall to his death. After he falls into a garbage truck, Casey Jones turns on the machine that crushes the trash which Shredder is in. The turtles reunite with Splinter, Danny reunites with his father, and Casey kisses April.
Lifesava
More mistakes in Teenage Mutant Ninja Turtles
Michelangelo: God, I love BEING A TURTLE.
More trivia for Teenage Mutant Ninja TurtlesMore questions & answers from Teenage Mutant Ninja Turtles
Answer: Most likely to kill Shredder and make sure that there would be no way to come back but, as seen in the sequel, Shredder does return.