Skill:

skill:
Skill 1 - "I'm too young to die"
Skill 2 - "Hey, not too rough"
Skill 3 - "Hurt me plenty"
Skill 4 - "Ultra-violence"
Skill 5 - "Nightmare"

respawnmonsters:
true
false

fastmonsters:
true
false




This changes the skill setting in mid-game.

For Nightmare/Skill 5, you should also set respawnmonsters and fastmonsters to true.