Nightmare

Nightmare's demeanor is completely different to as he was before corruption took over his body, though they still share some similarities. Even before the bullying and corruption, Nightmare has been the more cocky and proud between him and Dream. He tries to remain serious, and has always been interested in learning- both normal and corrupted. He is deceiving without remorse, willing to do anything to get his way and destroy every universe with negativity. He can pose as erratic, unpredictable, and evil. The corrupted Nightmare never lies, only hides the truth under coated words. He shares no respect for any other monster he encounters, including Error or anyone who protects the multiverses.His current appearance is quite sinister, as he is covered in a thick goop. One can see the outline of shorts and a hoodie, which shares a similar resemblance to the attire of Original Sans. He is entirely black and goopy, with usually about 4 tentacles coming out of his back. His left eye is constantly illuminated in battle blue.his weaknesses are Positivity He's disgusted by positive emotions. If he can't make them negative, he'll just leave, since it weakens him. He also is completely unable to enter positive AUs, a barrier prevents him from entering. A similar thing happens to Dream with negative AUs Because he only has one eye to see, he has a blind spot. Positivity may be his weakness but even that isn’t 100% effective Nightmare sans likes black coffee Nightmare and Dream share the same birthday (December 21) Sometimes Nightmare's tentacles can lose control when He is caught of guard or feels a lot of negativity at once. His goop is an extremely powerful shield that renders him invulnerable to most things; if he were stabbed with something, his body would absorb it and there would be no damage he has hench men named killer, horror, dust/murder, and cross killer is annoying and flirty, horror is a good cook but a bit scary, dust/murder is very quiet same for cross