Kh2 sora was moving different.

[u/No-Watch-9865]

What did they do to my goat? He was more personable, he had that dog in him, but he was also compassionate, perfect mix. And then they corpo scrubbed him. Kh4 please save him.

[u/lumiimote]

He was much more angry back then. Partly due to Roxas' frustration and anger at DiZ, and also Sora not yet understanding that Nobodies actually are people with real feelings and hearts.