Name: Rikku Gender: Female Age: 17 Weapon: Knucklebades Sphere Group: The Gullwings Default Dress Sphere: Theif

Two years later, Rikku, now 17, joins the Gullwings, a band of sphere hunters led by Brother. The only character from Final Fantasy X other than Yuna to be playable in Final Fantasy X-2, Rikku remains steadfastly loyal to Yuna, giving her support when she discusses her feelings concerning the loss of Tidus, and her hopes to find him once more. In the two years that passed between the two games, Rikku managed to overcome her astraphobia (fear of thunder) – by camping out on the Thunder Plains for a week. She also has a tendency to use odd expressions such as "disasteriffic" and "oh, poopie!" – expressions Yuna would sometimes pick up on. She is the only main character in the game with no significant plot role, but still is a loved character.

Rikku meets up with her old friend Gippal – now the leader of the Al Bhed Machine Faction – who, being quite the ladies' man, would tease Rikku with his flirtatious jokes, including one about them being a couple.
Also, as Paine kept quiet about her past – and also that Gippal jumped a mile when he saw her, as well as the other faction leaders seeming to know her – Rikku would sometimes prod and poke her about it, only to succeed in annoying her. However, in their journey, Paine eventually tells them about her role as a sphere recorder for Crimson Squad, alongside Gippal, Baralai and Nooj.

Upon meeting her young friend Calli on the Mi'ihen Highroad, Rikku and the Gullwings decide to help her catch a Chocobo. Later, during the Mi'ihen Highroad investigation sidequest, Rikku is one of the suspects when some machina malfunctioned after the Gullwings did this. If clues are arranged in a specific manner, Rikku is named the culprit and assigned clean-up service to make up for it.

In Final Fantasy X-2 International+Last Mission, Yuna, Rikku and Paine reunited after being disbanded three months after the game ended. While exploring the Yadonoki Tower, it was later found out that Rikku spends her time searching for sunken machina on the ocean floor. She shows a bit of annoyance to Yuna and Paine, but it was because she felt she was cut off from them, and reluctant to consider that they may have lost their friendship in the times (Yuna living with Tidus, Lulu and Wakka in Besaid, and Paine traveling independently). After realizing that they all share that sentiment, all three girls promised each other that they will write and keep in touch, ensuring that their friendship will never go away.

Despite the fact she spends the majority of FFX-2 wearing a bikini as part of her attire, in the one story-sequence in the game that requires the character to wear a swimsuit she dons a different (and considerably more conservative) one-piece suit.