Rod sullivan is an ice cream man that is an evil man because he is always called fat when he was a kid. he sells ice cream to fat and chump kids who go outside.

This is Martlet a royal guard that transformed into a new form of herself. she wants to stop you kill everybody. will you beat her?

Listen to queen toriel,she wants you to stop genocide. and will you stop genocide? or NOT?

He is Sans. He was known to k*ll those who commits genocide, but you tried to beat him! and he got slashed 3x and still hasn't give up.

This is the god of hyperdeath! he was a soul less flower and then ansorned all the souls eventually turning into his own form. and you encountered him, he see's you and becomes a god that wants to reshape and reset the timeline!