Squeakums is a character on Super Robo Mecha Force Five!, a fictional anime show that the turtles watch. He is the animal sidekick of the team, and although he represents Michelangelo, the two do not face similar problems, as Squeakums does not speak. He pilots Super Robo Mecha's right arm.
Lunk can often be seen telling Squeakums about his fears. This also represents Raph's relationship with Spike before he mutated.