XX

XX is the final Zone in Sonic Advance 2. It follows Egg Utopia.

Description
XX is a re-run where the chosen character must again fight all the bosses that were previously fought in the game, except this time they are all fought in space. They are easier to defeat this time around, as they require fewer hits. The final boss for this stage is a giant mech that is controlled by Doctor Eggman in person. Once the giant mech boss is destroyed, the main quest for the character chosen is completed (except Sonic who has another stage to pursue after Eggman as Super Sonic but unlike Sonic Advance, the extra zone doesn't follow directly after the final zone and so the player is required to go back into Sonic's story mode and select the extra zone from there after the credits roll).

Trivia

 * The stage's name (XX) is a reference to the first Sonic Advance's X zone which has the same stage concept.
 * If you clear this final zone, the music of the zone selection map would change to a remix version.

Music
335px

Video
thumb|300px|left