You regain control of Sora in Traverse Town. Talk to the party then head to the First District to find Cid. He’ll tell you where to find a new Gummi. Check out the shops before heading down to the Secret Waterway.
Note : All the Worlds have been flooded with new Heartless, and enemies that were weaker have grown stronger. You’ll have a lot of new encounter combinations as you backtrack through worlds.
Once you get to the Secret Waterway use Trinity Detect #1 to reveal a Chest with Orichalcum . Go check out the mural in the distance after talking to Kairi to receive the Navi-Gummi then talk to Kairi again to receive the Oathkeeper .
Head up the steps to the Magician’s Study and talk to the Fairy Godmother to obtain the Mushu Summon and receive the Lord Fortune . Head back and talk to Cid to get the Gummi added to the ship then head out.
Head back to the Lotus Forest and exit into the Bizarre Room via the exit near the acorn branch. Examine the painting to reach a hidden area of the Lotus Forest and Trinity Detect #2 . Open the Chest for the Lady Luck Keyblade.
Use Trinity Detect #3 in the center of the Gates to reveal a Chest with the Violetta .
In the Cavern of Hearts you can find Trinity Detect #4 to reveal a Chest with an Orichalcum .
At the Cave of Wonders Entrance you’ll find Trinity Detect #5 . Using it reveals a Chest with an Ifrit Belt .
Head to Chamber 6 to find Trinity Detect #6 . Open the Chest for a Dark Matter .
Go to Triton’s Palace and check inside the giant conch shell in the center for Trinity Detect #7 . Open the Chest for an Orichalcum .
Head to Moonlight Hill and use Trinity Detect #8 to reveal a Chest . Open it for Dalmatians 67, 68 and 69 .
On the Deck near the wheel you can find Trinity Detect #9 . Open the Chest that spawns for Dalmatians 43, 44 and 45 .