Nickelodeon All-Star Brawl 2 is a crossover 2D platform fighter developed by Fair Play Labs and Ludosity. Grandma Gertie from 'Hey Arnold!' has joined the battle. Take a look at the reveal trailer to see some of Grandma's move sets and gameplay mechanics. Nickelodeon All-Star Brawl 2 is launching on November 14 for PlayStation 4, PlayStation 5, Xbox, Nintendo Switch, and PC.