I read this question: Why is Snake covered in blood even after a shower? and thought the mechanic was really cool.
Is it possible to have negative demon points, and are there any physical changes that happen if you're a good person?
I read this question: Why is Snake covered in blood even after a shower? and thought the mechanic was really cool.
Is it possible to have negative demon points, and are there any physical changes that happen if you're a good person?
What you're referring to is generally called "Demon Snake". This is what happens when your demon points get to be rather high. The opposite of the demon points are Heroism points.
Demon points get reduced as you gain Heroism points so instead of making demon points go negative it stops at zero. Once you gain a certain amount of heroism points after reducing your demon points to zero you get a similar "visual difference". Since that point system is meant to be the opposite of "becoming a demon" (i.e. A large and being covered in blood) your horn shrinks in size until it is more of a bump.
This wikia page has a great explanation of the entire demon points and heroism points system.