system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why does the emperor's skin get all weird during the lightning battle with Mace Windu?

Does he melt?  Does he transition to his normal form and use the attack as an excuse?  Seriously, other than his speech about being disfigured, he doesn't seem to mind the change at all.  We do not see similar damage going on when he zaps Luke (which seems to be on par time-wise), so what's going on?
gpt
It's not entirely clear. Some say the kindly grandfather face he put on was just a mask and what was revealed by Mace was his true face.

Palpatine himself would say he was irrevocably scarred because of the encounter.