Yuna, Shows off in Other Game Heading.

Yuna, along with Rikku and Paine, appears at Hollow Bastion in Kingdom Hearts II, working for Maleficent as spies/agents in return for treasure. The three are fairy-like and appear in chibi form. After Maleficent abandons the three during the Heartless attack at Hollow Bastion, and led to believe Leon has treasure by Donald, Yuna and gang switch their alliance to Leon and the rest of the Hollow Bastion Restoration Committee. Yuna and others forgive Sora and his partners for the deception with the three giving Sora the "Gullwing" Keychain, a reference to their sphere hunting group in Final Fantasy X-2. Later in the credits, Yuna, along with Rikku and Paine, is with the Restoration Comittiee, and Rikku snatches Yuffie's Seasalt Ice and runs away. She was the only character in her gang whose name is spoken, "Yunie", a nickname made up by Rikku (only in the English version of X and X-2).
Yuna, in both her summoner and gunner forms, is a playable character in Itadaki Street Special. Yuna