Unibeam (Marvel Anime)

The Unibeam is a multi-functional repulsor ray emitted from the armor's chest with a maximum effective range of 100 feet away created by Tony Stark aka Iron Man.

Uses
The unibeam's function is to fire a large repulsor blast at a targeted person or vehicle withing a hundred mile away.It could be a devastating blast on the target and those near it.

However, it was restricted to just fire the uni-beam not beyond the energy requirements the unibeam needed due to the power levels of the power source the suit's holding up. Otherwise,it might cause the suit to shut down and recharge for a while..

History
The unibeam was discovered and developed by Tony Stark in his secret project to build advanced Iron Man armors in Stark Industries back in America.

In Japan, the uni-beam was used once when Yinsen in the Dio armor fired the unibeam at Stark leaving him unconscious in battle and when Iron Man,powered by the Arc Reactor's energy, had fired a massive unibeam blast unlike any other before, at Kuroda's Ratsetsu armor who fired back by shooting his own unibeam at him but was completely obliterated, leaving Iron Man victorious.

After that he went back to America to improve his Iron Man armors' weapons systems, core systems and others back in his armory.