Wizpig is a gigantic alien pig and the main villain of Diddy Kong Racing and its Nintendo DS remake, Diddy Kong Racing DS. Not much of Wizpig's past is known, besides the fact that Wizpig was bored and decided to conquer his own planet. Wizpig succeeded and transformed his homeworld into a high-tech amusement park called Future Fun Land. Eventually Wizpig once again grew bored and decided to leave his planet to look for thrills on other inhabited worlds. One of the thrills Wizpig discovered was racing. This sport eventually became Wizpig's favorite thing to do, along with causing chaos. Wizpig's name is a portmanteau of "wizard" and "pig".
From then on, Wizpig caused trouble, racing those who challenged him. Eventually Wizpig wound up on Timber's Island, a neighbor of Donkey Kong Island, here he set to work. First Wizpig usurped Taj the Genie. Then, Wizpig turned Drumstick into a frog when Drumstick tried to challenge Wizpig. He also managed to hypnotize Tricky the Triceratops, Bluey the Walrus, Bubbler the Octopus, and Smokey the Dragon into becoming his servants, giving each of them a Wizpig Amulet piece to guard.
Timber, the son of the island's owners and his friend Diddy Kong, gained all the pieces to Wizpig's amulet, which allowed them to challenge Wizpig. After they beat Wizpig, Wizpig teleported away. With Wizpig gone, the heroes celebrated. This party was cut short by Wizpig. Transporting himself and an opponent to Future Fun Land, Wizpig demanded a re-match.
After a race consisting of dodging robots, electric fences, and lasers, the heroes once again beat Wizpig. After his defeat, the rocket Wizpig was riding malfunctioned, stranding Wizpig on a deserted planet.
In Diddy Kong Racing DS, Wizpig is an unlockable playable character, and he can be unlocked by completing Adventure Mode 2. Wizpig as a playable character was resized to fit in the vehicle, and his stats are the same as Taj's.