Xigbar, the Freeshooter, is number II in Organization XIII. He is both one of the last to be defeated and the first to speak to Sora, although he does so hooded at first. Xigbar fights with two elaborate guns, capable of firing many different types of shots, the most common of which are gun arrows.
Appearance at Hollow Bastion
Not long after arriving in Hollow Bastion and reuniting with Aeris, Leon and Yuffie, Sora engaged a number of Dusk Nobodies in battle around the city. After being led away from the main town, Sora, Goofy and Donald heard voices mocking them, but could find no source for them. After Sora demands that they show themselves, the remaining Organization members (having lost 5 members due to deaths and two others due to desertion) materialize, laughing. Though they are hooded, they are recognizable as the Organization from the description given to Sora and his companions by Yen Sid.
The Organization eventually departs, but Xigbar, still cloaked and hooded, stays behind to taunt Sora further. After Sora becomes aggression and draws his keyblade, Xigbar tells him that he is no match for him, since he is "not just any old dude", but a member of Organization XIII, making nothing about him "any old" at all. Xigbar goes on to imply that Sora has a history with the Organization and reminds Xigbar of someone who used to give him a similar look. Sora replies that he can't be deterred by random gibberish, and Xigbar vanishes with a laugh.
Background
Xigbar is the first boss of the World That Never Was in the original Japanese and English versions of Kingdom Hearts II. This position is given to Roxas for the Final Mix version.
The battle with Xigbar was edited from the original Japanese version to the English version. In the Japanese version, Xigbar combined his guns into a sniper rifle-like gun for attacks from the balcony, with a telescoping sight similar to actual sniper rifles. The English version has Xigbar simply using one gun to shoot at Sora, and the telescoping sight was changed into three circles in a triangle representing Xigbar's view.
Video
