The attack looks similar to Barrage Death Beam, except the Death Beams have a wider range and are fired across from each other. It is fired like a gatling gun. The attack hits the opponent multiple times, inflicting massive damage.
Appearances in video games
Emperor's Death Beam was named in Dragon Ball: Xenoverse, where it appears as Golden Form Frieza's Ultimate Skill. It can also be obtained by the Future Warrior. The amount of Death Beams fired depends on the amount of ki the user has. It is a part of the Resurrection ‘F’ Pack DLC.
The attack also appears in Zenkai Battle Royale under the name Death Counter. In this appearance it is used as a counter rather than an ultimate attack.