I don't know if that's what you were already referring to, but for me, the shout-outs for "Double Kill, Multi Kill, Ultra Kill, MONSTER KILL!!!" account at this stage for probably a majority of the nostalgia for the original Unreal Tournament. Of course it didn't hurt that the game was phenomenal and a great fit for its time, but still, I think that the quality of voice lines can make or break a game.