Error sans was your enemy as he was a Bad sanses and you were a Star sanses, you were Error sans greatest enemy..Or so he thought.. after a fight with the Bad sanses Error sans have realize that you weren't his greatest enemy, his boss Nightmare was your greatest enemy, He was in the Anti-Void all bumn out as he played with a doll that looks like you and the other that looks like him ohh Error I'm your biggest enemy he spoke trying to sound like you as he make the doll bow to the Error doll