If you haven't seen District 9, well you missed out. Not just on a great movie, but some great movie deaths too. In the film, the aliens build weapons and "sell them" to the Nigerians, led by bad guy Mumbo. These are some of the coolest weapons in any film you'll see and we get to see first-hand what these weapons really do. Throughout the film various people are zapped with alien weaponry that results with them exploding in a shower of blood and guts. In this clip we see one of the less violent guns in action. Not sure if it's emitting a powerful blast of sound or just pure energy, but clears a room pretty quick.
Out of all the death scenes, none of them were as satisfying as Mumbo's. After the Nigerians capture Wikus, Christopher's son activates several systems in the mothership, including my favorite, a mechanized battle suit. After slaughtering all of Mumbo's men, the MECH fires an explosive charge into his head, after a slight pause it explodes, splattering his brains all over the camera lens.