Repulsor Beam (Next Avengers: Heroes of Tomorrow)

The Repulsor Beam is the main weapon of choice used by Iron Man and Ultron.

Uses
The Repulsor Beam can be used as the main weapons to fire powerful blasts at foes and as flight boosters to balance in flight.

The main users are Iron Man and Ultron.

History
Its early history was largely unknown but it is stated that Tony Stark had created the Repulsor Beam as his main weapons to the Iron Man armor he built.

As he built Ultron, he added the Repulsor Beams,Uni-Beam,and other advanced weaponry on him.

After defeating the Avengers, he upgraded the weapons and tech to make himself stronger and more dangerous.

In the Artic Circle, Tony had also upgraded his Iron Man armor to better combat Ultron.

When Ultron found Iron Man and the Avengers' children in their hiding location, Tony had clashed with his creation as the children escaped. But Ultron had the upper hand and defeated his creator which his armor was destroyed.

In the desert, Ultron used his Repulsor Beams and Unibeam on the Hulk,but the green brute had resisted them and destroyed the machine in the process.

Background Information
The colors of the Repulsor Beam are blue,yellow and red in other versions of Iron Man.