Using a special energy called Aeion, Samus can temporarily power up with several abilities. For example, you can power up your attacks and hold down the fire button to unleash a machine gun barrage of shots.

Yoshio Sakamoto

Beam Burst

Samus uses the Beam Burst against a Zeta Metroid.

Beam Burst is an Aeion ability in Metroid: Samus Returns. It enhances Samus's Power Beam and allows Samus to unleash a machine gun-like barrage of shots when the fire button is held down. This of course means the Charge Beam is incompatible with the Beam Burst, however interestingly it can be used to restore power to Charge Doors indicating that it has the same properties as Charge Beam. As with other Aeion abilities, using the Beam Burst depletes Samus' reserve of Aeion. The Beam Burst is the only weapon capable of destroying certain enemies, such as Blob Throwers, Black Gravitts and Autoads, and is also useful for destroying Autracks and Wallfires.

When activated Beam Burst takes up both the slots for the Power Beam and Ice Beam, preventing Samus from using the Ice Beam while it is activated, though the Grapple Beam can still be selected even while the Beam Burst is active. The Beam Burst takes on properties of any stackable beams including the Wave, Spazer, and Plasma Beams.

Strangely, the Beam Burst is able to damage all Metroids except the Larva Metroids, despite lacking properties of the Ice Beam.

Official dataEdit


"Destroy enemies with rapid-fire attacks."


"Select with [D-pad right]. Activate to strengthen beam shots. Hold [Y] for a continuous flurry of shots.

  • Aeion is expended with each shot."

Aeion Abilities dataEdit

"Beam Burst enhances your beam by increasing attack power and enabling rapid-fire shots. Firing this beam uses Aeion. Press [D-pad right] to equip. Press [A] while equipped to activate. Hold [Y] for rapid-fire shots. Press [A] again to deactivate."


  • Despite being seemingly incompatible with the Charge Beam, Beam Burst shots have similar properties to Charge shots as they can restore power to Charge Doors. This indicates the possibility that the Charge Beam is actually incorporated into it, though due to the Beam Burst's rapid-fire and Aeion fuel source, no charging is required.
  • Some of the properties of the Beam Burst resemble that of the Murder Beam/Spacetime Beam glitches from Super Metroid.


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