[@Vesuvius00]
Ah yis...forgot to add...

It takes two non-red souls to reset the timeline once killed, but they probably won't remember what happened last time...unless one of them were the blue soul.

Blue Soul now gets the ability to remember despite resets or reloads of saves.

As well, for me...
Pacifist - never kill nobody
Normal - killed a few and learned you didn't have to fight or kill everyone
No Mercy - killed all monsters that were encountered
Genocide - hunted down all monsters till the areas were empty