Join Phineas and Ferb as they travel to out-of-this-world places in their newest invention, the A.T.T. (All-Terrain Transformatron). This upgradeable, customizable, ultra-cool amphibious ride helps the boys hunt for lost loot to display in their backyard Museum of Cool. Phineas and Ferb: Quest for Cool Stuff features many of the fan-favorite characters from the hit show, including Perry the Platypus — aka secret Agent P, Candace, Isabella, Buford, Baljeet, and the evil Dr. Doofenshmirtz, who is determined to unleash his latest creation, the "get-rid-of-cool-stuff-inator" on the Tri-State Area.