Tribbles have made several other notable appearances in Trek properties since their debut on the original series. A sequel to The Trouble With Tribbles episode called More Tribbles, More Trouble was actually planned for Season 3 of Star Trek: TOS but was scrapped, with the story later being used for an episode of Star Trek: The Animated Series . Tribbles popped up briefly in Star Trek III: The Search for Spock , then showed up again in both of . Abrams’ Star Trek films (Abrams just loves his Tribbles). They also showed up in an episode of Star Trek: Enterprise .