At the point Sora realeased his heart in Kingdom Hearts, Roxas was in the process of forming himself into what we all see him as. During the time he was in Castle Oblivion, Roxas was in the Organization. To better understand, his whereabouts you should purchuse Kingdom Hearts 358/2 Days for the DS.
No. When Sora was turned into a Heartless, Roxas was created as Sora's Nobody. Roxas is the shell Sora left behind when he was transformed into a Heartless, even though Sora later got his heart back. So Sora is not Roxas's Heartless; Sora, to Roxas, is what's known as an Other. An Other is a Nobody's original self. None of the Organization XIII members have an Other who's still alive; Roxas and Sora are a unique case.
Roxas was 'born' when Sora briefly became a heartless after vanquishing his own heart to save Kairi. When someone becomes a heartless, the empty shell left behind becomes a nobody. This is the case with Sora and Roxas.
Roxas was "made" when Sora turned into a Heartless, towards the end of KH1
Kairi never became a Heartless. Since she's one of the seven princesses of heart, she is pure of heart and devoid of darkness, so she can't succumb to the darkness and become a Heartless. Naminé was actually born from the transfer of Sora's heart into Kairi. Sora's released heart caused Sora to become a Heartless and produce the Nobody Roxas, but the transfer to Kairi also created the Nobody Naminé.
No. Roxas is the nobody form of Sora created when Sora sacrificed his heart to save Kairi. When someone is turned into a heartless, the empty shell left behind is born into a nobody, and in this case; Roxas.
He has blond. now his heartless ,Roxas, has dirtyblond.
If you mean when Sora was a heartless, than it just disappeared. Sora was a heartless, Kairi gives him a hug, Sora hears Kairi's voice and light returned to his heart. He turns from his heartless form to human form, also still making Roxas while turning back into a human.
Roxas went to be his part of Sora if you played KH1 you would see that Sora turned into a heartless. When that happened he was strong enought that he also produced a nobody: Roxas. According to Naminie Roxas was needed to make Sora whole.
roxas was always soras nobody, and he formed when sora became a heartless, because sora's heart was so strong, roxas was formed and then joined organization XIII and supposedly there was a 14th member of organization 13 so basicaly in 358/2 days its organization 14 then 13. sorry if i spoiled 358/ 2 a little.
"Ansem", who at this time looks like Riku, told Sora that the way to awaken Kairi's heart was to stab his chest with the Darkness Keyblade, which he does. The Darkness Keyblade turns Sora into a heartless, but releases Kairi's heart, which shows why at the last second she gets up and runs to the disappearing Sora.
Roxas and Ven are the same people, at the end of birth by sleep Ven asked Sora if he could keep his heart in Sora. So throughout all the other kingdom hearts games that Sora was in Ven was inside of him (just like Kairi in the first game). when he became a heartless, and a nobody ven's heart became Roxas.
Nobodies are like alternate people created when someone with a strong heart is turned into a Heartless. For example, when Sora was turned into a heartless, Roxas was created, because Sora's heart was strong.