Complete the indicated Challenge mini-games with a "C" or better rank to unlock the corresponding alternate costume in the "Extras" menu.
Andy's "Astronaut" costume: Hill Defense
Andy's "Samurai" costume: Dodgeball
Andy's "Surfer Dude" costume: Jack Attack
Carrie's "Construction Worker" costume: Construction Destruction
Zack's "Secret Service" costume: Slice N' Dice
Zack's "The One" costume: Home Run Derby
