Addict : Every time you come across drugs, you must pick them up and take them as soon and as often as you can without ODing.
Martial Artist : No weapons, only fists. Fight like a man, only wimps use weapons.
Pyromaniac : Every building you enter, you must raze as you leave. Burn everything.
The Light! It Burns! : Only go out at night. The daylight burns your skin.
Water in Videogames is Almost Always Evil : Other than bottled water, you must steer clear of any water sources, including rain.
I Am Become Death : See how quickly you can find a mini nuke and kill yourself with it.
Bookworm : Every book you see must be collected. Stop what you’re doing and grab those lovely novels!
Carnivorous : You ain’t no hippie. Red blooded American men eat red blooded American meat. You’re not allowed to eat any plant-based products, including bread, pretzels, and potato chips.
Pacifist : Never fight. If something wants to kill you, just turn around and run away, or find a way to get it to kill itself. As long as you dont ever directly deal damage, then do whatever you please.
That’s all I could think of.