The mini nuke is an ammunition type found in Fallout 3, Fallout: New Vegas and Fallout 4.
A mini nuke is similar to an American football in both shape and size. When the red tab on the nose is pressed down, the atomic fission is activated and creates a small nuclear explosion. However, the only way to detonate them is to use a Fat Man or a Big Boy. Shooting it and/or using other explosives around it does not detonate the mini nuke.
