Appearance and Personnality
Same as his Undertale counterpart.
If Checked : 1 ATQ 1 DEF. Looks like someone have a dead wish.(Only in Genocide, don't fight in Pacifist and Neutral)
You kill him in one hit.
In a Neutral and Pacifist timeline, you'll meet him at his usuals locations. He doesn't appear in the last corridor only.
In a Genocide Timeline, You'll fight him at the entrance of Waterfall.Angered by the death of Papyrus, he challenges you, only to get killed a few seconds later.Josh appears and take his soul in safety. He will be resurected in the true lab with unknowns means, probably with the injection of determination from Josh himself.