Giant-Evil Sulu

Giant-Evil Sulu is an evil, monstrous version of Sulu. He only appears in Captain Underpants and the Preposterous Plight of the Purple Potty People.

Captain Underpants and the Preposterous Plight of the Purple Potty People
The faulty time machine sent George, Harold, Sulu, and Crackers to an alternate universe, where every aspect of the world is the opposite of the original universe. Misleading them to believe they were their true owners, Evil George and Evil Harold kidnapped Sulu and Crackers. The doppelgängers then hypnotized them.

Evil George stumbled upon this invention in Good George and Good Harold's treehoue and tested it out on Evil Sulu (Sulu hypnotized to be evil by the 3-D Hypno Ring). It then made Evil Sulu grow to the size of a sheepdog. Evil George then gave a few more zaps to Evil Sulu until he was about the size of a giant monster. It is not known if Evil George, Evil Harold, and Captain Blunderpants still have this invention after they used it on Evil Sulu. However it is possibly still in Good George and Good Harold's treehouse, as the evil trio most likely had no further use for it after enlarging Evil Sulu since they only needed it to make Evil Sulu gigantic, so that way he could be used as a distraction while they robbed Frank's Bank.