The Dimension Missile is essentially the ammunition for the Dimension Missile Launcher. Very bulky to carry around, suggest using teleporters instead to avoid missiles.
Official Entry: "The missile explodes with devastating power. It seems to use an inter-dimensional flux to suck in anti-matter from an alternate dimension. This instantly generates an atomic reaction which destroys the missile and most of its surrounding matter. It should not be used in situations where buildings and civilians need to be protected."