As explained in the Nintendo Digital Event presentation, players collect material to make outfits in Zelda: Tri Force Heroes. The outfits provide the player with enhanced abilities, for example an enhanced spin attack or bigger bombs. Shikata said that high-level materials are necessary to make the best gear, but the ones you find in PVP have a distinct advantage. "There are materials that you can only get by competing in the Coliseum," Shikata said. "Those material allow you to make clothes that are highly beneficial to competing."
Jose Otero is an Editor at IGN and host of Nintendo Voice Chat. You can follow him on Twitter.