Mission 88: Eliminate the giant Heartless
A giant Heartless has surfaced in Halloween Town. Find it and eliminate at once.
Roxas is sent again to eliminate (what he thinks) is a giant Heartless. Axel comes out of nowhere, stopping the fight between the "Orcus" and Roxas. Somehow, Xion and Roxas looked like an Orcus to each other. Axel reveals the battle was a set-up by Saïx to see who was the more powerful Keyblade wielder, and who would serve the Organization better.
Halloween Town is eerily quiet, with no Heartless in sight; collect the Slot Releaser and Unity Badge near the entrance then proceed towards the Graveyard. Here you will find the Orcus. This is a short and easy battle, if you are equipped properly. If you have a strong gear equipped, you are all set. You may wish to bring some Potions or Cure magic to aid you. After the cutscene, Roxas will immediately RTC.