Nickelodeon Kart Racers 2: Grand Prix will feature a selection of 30 playable characters, consisting of real-life actress JoJo Siwa, and characters from 12 different Nicktoons: SpongeBob SquarePants, CatDog, Teenage Mutant Ninja Turtles, The Loud House, Rugrats, Danny Phantom, Hey Arnold!, Avatar: The Last Airbender, The Legend of Korra, The Ren & Stimpy Show, Invader Zim, and Rocko’s Modern Life.