"Roboticus Maximus" is the first segment of the fifty-eighth episode of Yin Yang Yo! It premiered on February 21, 2009 alongside "Size Matters", and is the first segment of the thirty-second episode in season two.
Pondscum, Zarnot, and Fastidious join Mastermind to try to destroy Yin and Yang with a robot. But Yin and Yang are too busy fighting over leadership than Mastermind's robot. Luckily, a new recruit might be able to defeat Mastermind.