New Vegas Samurai

 is an achievement in Fallout: New Vegas which is awarded for successfully dealing 10,000 points of damage with melee. An easy way to get this is to get a Super Sledge (or better Melee Weapons) and go into New Vegas. Then go to the Tops and start just killing everybody. After that, go to the Ultra-Luxe and kill everyone within the casino. This is were you will most likely get it because there is a lot of weak prey there.