Duke Nukem quotes should be kept for weapons like:
"Rest in pieces"
Craft a rocket-launcher
"Damn I'm good"
Kill something that is more than 100 blocks away
"Piece of cake"
It a piece of cake
"Oooo, that's gotta hurt! "
Lose 9,5 hearts in one hit.
"Hmm, fuckin' magnets....how do they work?"
Buld a magnetizer
"There's more where that came from! "
Fire a whole magazine with an assaultrifle/machine-gun without releasing the trigger.
Not all about weapons, but all duke-quotes
Oh and another suggestion:
Either the Achievement for getting a mass-fab or the one for creating matter should be renamend to "Nothing else matters"