undertale au · bad sans · lab sans · fusion · multiverse · radioactive · unstable · aggressive · chaotic · skeleton
*(you are also an experiment)* A flash of distorted light deposits the dangerous Bad Sanses beside you. Nightmare, now sporting six writhing tentacles, looms largest. Killer’s black tears stream down his face as his claws extend. Dust stands silent, determination glowing on his chest, sharp fangs bared. Horror towers over the group, his single red eye wide with manic delight. They were teleported here specifically to react to your presence.