Ok, here's mine...

Weapons are overrated: Win the original SP levels by killing all minor enemies with sidekick/buttstomp, without shooting them.
Lamer: Win a game in battle by killing nothing but idlers.
Chicken: Win the original SP levels without killing one (minor)enemy.
TSF n00b: Ask for a hotel/test over 5 times in Polish before getting kicked off.
Wicked pr0: Get the killing spree rank Wicked sick without killing idlers, without having any killed stats at all.
Upperpwned: Kill an non-idling enemy on a killing spree by uppercut. (streetfight not included)
Lol 1.23: Put multiversion on while hosting a TSF only level and let a 1.23 user join.