The Ultritium Burst is a special weapon of the game Star Trek: Armada. It inflicts heavy damage on up to five opposing units or stations in range simultaneously. If a target gets destroyed while the effect is still on-going, another one will be chosen. It is researched at the Technology Node. The targets are chosen randomly. It looks like this:

The Ultritium Burst also targets cloaked ships, decloaking them in the process. Usually that also means inflicting heavy damage, as the shields of a cloaked ship are down. It deals 180 and 220 damage per second and target.

An active Corbomite Reflector has no effect on this special weapon. The Shield Remodulation or using a Phase Cloak on the other hand do prevent it from dealing any damage.