Heyy, I noticed that Change!Paps has half his arm amputated so my questions are: Does he suffer from phantom pain? If so how does he deal with it? (Also does change!Paps have a nickname? like underfell!Paps whose been called Edge)
Papyrus after losing his arm from being trampled does indeed have phantom pain and phantom limb! It's very uncomfortable for him but unfortunately there's nothing anyone can do about it since the missing limb is gone forever.
Change! Pap does indeed have nicknames, depending on who you ask!
Mettaton: Orange pop
Undyne: Storm or Shifter(Papyrus is unstable)
Toriel: Protector.
But you can call him whatever! Just be nice about it, he's a teeny bit sensitive! ^^
(I personally like to call change! Papyrus 'shield' from how he tries to shield everyone else from losing hope and his defenses! These guys don't exactly have a theme to them like others do unless you call a unfathomable amount of trauma and trying to deal with it a theme-)