in 1 its once you kill malificent and riku in 2 its when you use forms to much
To not love them or just like them for their money. give things to them they like, love, or need.
Sora simply became a shadow. He didn't become an Emblem Heartless, such as an Orcus.
It never says
heartless people
serotonin
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.
Sugar or caffeine.
Heartless and jealous of them.
They are Pureblood, meaning they are the original Heartless that weren't people missing hearts. They are monsters such as Darksides and Shadows that never needed a person without a Heart.
no. He does become a heartless at one point, but he recovers from that XDXDXD
No. In Kingdom Hearts only Sora became a "Heartless". However, Kairi initially lost her heart on Destiny Islands. Instead of her heart being consumed by darkness and turned into a Heartless, her heart went into Sora's body because of their shared destiny. When Sora found Kairi's body, he released both his heart and her's. Her heart went into her body while his was Consumed by Darkness and he became a heartless. So They did not simultaneously become heartless because by Sora becoming heartless he gave Kairi's heart back to her. And when Kairi lost her heart, Sora still had his.
Xehanort determined that in order to become more powerful, he had to turn himself into a Heartless. Braig and the others were either researching with Xehanort or were guarding the labs that the others were working in. Therefore, when they heard what Xehanort had discovered, they wanted to be a part of it. They, in turn, became Heartless, and their Nobody incarnations came into existence.
The person is split into his or her heart and the rest of his or her body. The heart's consumed by darkness to become a Heartless. The body without a heart becomes the Nobody.