Grave Digger
"I remember hearing the description of a “semi-sawed off triple barrel shotgun with incendiary rounds” as the description of the final upgrade for the Grave Digger and knew it was a weapon I wanted to work on. Initially the barrels were going to spin when the weapon was cocked but it felt too much like a minigun (a weapon we already had). While the idea of a shotgun minigun is terrifyingly awesome, we went with the cocking mechanism that could be used throughout all of the upgrades which is what you see in the game now."