The Tallium 80, or "Finisher" Missile, is a massive missile packed with Tallium 80 gas, a super heavy metal of the Tallium family. The Tallium 80 Missile comes in multiple sizes with the same design, and can be carried by several Hornets, though its usage is highly restricted.

Over time, released Tallium 80 gas turns into an inert fluid, which can be reactivated by the right electrical charges or light frequencies. For this reason, Tallium 80 Missiles are designed to release their contents on impact, retreat, and after a period of time, deactivate the gas by passing an alternating current through it, before exploding. This all happens within a few seconds.

The Tallium 80 missile is powered 3 rockets, and can pilot itself after being launched.