The concept of the chainsaw as a melee weapon in a video game started out in the original Doom like so: http://youtu.be/veB0NVHJHms Which eventually developed into this: http://youtu.be/DjV-fpo_W1A You might have seen countless games that use the chainsaw in a similar fashion by now but make no mistake; its thanks to the original Doom that were so often able to wield these weapons of mass decapitation in games today. Sure the original Dooms chainsaw deaths might seem tame by todays standards (after years of slowly being desensitised) but dont forget, back then Doom thanks in no small part to the inclusion of the chainsaw - set the bar for simulated violence for many years to come.