Error Sans is a short black skeleton, with red inside parts and yellow teeth. Similar to Sans to Skeleton, he possesses a smile and the same facial features, but has a small white right eye, and a large yellow and blue left eye. Error Sans is very short tempered, and is also arrogant and rude. He is very powerful, and can wipe out the Doodle Sphere with a mere pull of a string. Error Sans also gets annoyed easily, and loves to mess with other Sans that are weaker or below him.