Tippy Tinkletrousers is responsible for some of the most complex storylines in the franchise. His meddling with time travel directly set the stage for the Captain Underpants spin-off series, Dog Man .
Driven by vengeance, Tippy uses his "Freezy-Beam 4000" and a giant pair of robotic trousers to wage war against the world, making him the definitive archenemy of Captain Underpants. Plot: A Journey Through Time captain underpants tippy tinkletrousers