Analysis of information sources in references of the Wikipedia article "Teenage Mutant Ninja Turtles II: The Secret of the Ooze" in English language version.
It is true that I didn't want them in any of the movies, which is why instead of Bebop and Rocksteady in the second movie (The Secret of the Ooze) there were Tokka and Rhazar. If memory serves, Kevin was equally opposed to the inclusion of Bebop and Rocksteady in the movies.