What's better than a gun that launches wee nuclear bombs? How about one that fires a few thousand per minute? One enterprising Fallout: New Vegas modder created the Mininuke Minigun to see just how fast a nuclear holocaust can happen.
As you can see in the above video, via Reddit, firing a few hundred rounds of nuclear explosive ammo is not the safest of weapons. But the architecture of New Vegas really holds up against a streaming series of mini mushroom clouds. We can't recommend as a good tool for performing rocket jumps though.