Riku's Story
To unlock Riku's story mode beat the story mode with Sora.

Multiplayer/Versus
To play in versus mode with other Nintendo GameBoy Advance Users, you must defeat the game in Story Mode with Sora. This will also unlock the "Riku Story Mode".

Summon Cards

    * Take Pooh out of the 100 Acre Woods: Bambi Card
    * Defeat Hades: Cloud card
    * Beat Monstro level: Dumbo Card
    * Beat Jafar: Genie Card
    * Beat Guard Armor: Simba Summon Card
    * Beat Captain Hook: Tinkerbell Card 

Cards

    * Mushu card: Open key to rewards in Hollow Bastian
    * Riku card: beat Riku Replica the 4th time
    * Confuse: talk to Piglet in the 100 acre woods
    * Blazing Donald skill: open key to Rewards in Agrabah
    * Omnislash: Stock up 3 cloud cards