Colortale!Gaster

Origin story
2 years before the second determinated child fall in underground,Gaster wanted so much to free everyone. He had a theory that creating seven artificial human souls,these could replicate the original ones,so he created them, but it required a host to try his theory. So, Colortale Sans, was his subject to try his theory,so he put Sans in a machine to transfer the souls directly into Sans's soul,but something went wrong, the experiment works,but Sans turned into a weak mentally being,He attacked gaster and Gaster dies.

Appearence
He had blue jacket with a soul which had a soul with a red triangle upside down, purple shirt, black pants and red boots.

Personality
He was a determinated person and smart,but too repulsive and doesn't listen to anyone.

Powers and abilities
Bones, teleportation,gaster blasters