TEENAGE MUTANT NINJA TURTLES 2 - THE SECRET OF OOZE (1991)
MICHAEL PRESSMAN
Plot
The turtles find out where the Ooze, the substance which made them mutate, came from. Unfortunately Shredder learns about it and uses it to enhance himself. So the Turtles have to prove again who are the best ninja fighters. And it turns out, it's THEM! Phew.