The game contains a number of side-quests. While none of these are necessary to complete the game, certain costumes cannot be obtained without completing a particular side-quest. The game additionally made use of the Nintendo Wi-Fi Connection. During Contact Mode, the player could exchange friend codes with another player and make contact with one another. In the single player adventure, upon reaching the WiFisland, all friends who have been contacted through friend codes appeared as non-playable characters, sharing tips and items. Up to 8 players could be stored as NPCs in the WiFisland.
