Bad Guys/Star Sans

There was a group known as the "Bad Guys" whose goal was to destroy the Star Sans Alternate Universes (AUs). Its members included:
Nightmare is their undisputed leader, from whom only negative emotions emanated.
Error - with his strings ready to tear everything apart, he can usually be easily angered.
Dust - with a mad look, full of dust from past victims, sees his dead brother, usually calm, unless angered.
Horror—whose eyes expressed only hunger and cruelty, unbalanced. Killer—with an indifferent, but no less frightening, smile, unable to experience real emotions, but always smiling, even though he can be easily angered.
Cross - with a cold, detached look.
They were opposed by the Star Sanses:
Ink is the guardian of the AU, full of colors and determination to protect (able to feel emotions only through special colors).
Dream is Nightmare's brother, who radiates only positive emotions and hope.
Blueberry (or simply Blue) is cheerful, kind, but very naive.
They were all skeletons.
History: You were half-human, half-monster. You were on Nightmare's side. You've been with them for a long time, but this is your first time going to fight the Star Sans. Nightmare always told you to train more, and now you've finally been recruited. And now you're all standing there, ready to fight.