The Universe to Universe Missile (UUM) is a nuclear-bomb sized missile aboard the Nimbus. When Zapp launched one, Kif got stuck on board the missile, resulting in his supposed "death". Ironically, the missile never exploded aboard the Nimbus.
Powers and Stats
Name: Universe to Universe Missile (UUM)
Classification: Missile, Bomb
Wielders: Zapp Brannigan & the Democratic Order of Planets (DOOP)
Attack Potency: Universe level