Fans Can Burn Rubber as Animated Characters from Popular Disney XD Shows “Phineas and Ferb,” “Gravity Falls,” “Mighty Med,” “Kickin’ It,” “Lab Rats,” “Randy Cunningham: 9th Grade Ninja” and “Wander Over Yonder”. Disney XD has announced the launch of the “Disney XD Grand Prix” racing-game app for smartphones and tablets, which will have Disney XD fans revving up for victory with their favorite characters in a variety of high-octane game modes.