[quote=@Alternax]
Well, I'll say it. I'm not sure what happened. Did Guts somehow kill the dudes while inside the dimension and because of that was he was sent to another place?
[/quote]

Ah, basically, the guy who trapped Guts in the Sharingan dimension also uses it to teleport. X arrived, the guy was scared, and teleported away... bringing himself right into Guts' hands. With the only thing keeping the Sharingan dimension stable now separated from its head and body, Guts experienced a total universal collapse and was farted out in the middle of another universe.