Metroid Prime 2 adventure archiveMetroid Prime 2: EchoesGUIDES
Metroid Prime 2: Echoes / beam weapons, ammo and visor uses

Metroid Prime 2 beam weapons, ammo and visor uses

Compare Power, Dark, Light and Annihilator Beams and the visors supporting them.

Edition covered

Original Nintendo GameCube release. Wii Trilogy pointer controls and its adjusted encounters are not used for this guide.

Spend special ammunition deliberately

Samus fires a purple Dark Beam shot at a nearby target.
Samus fires a purple Dark Beam shot at a nearby target.

The Power Beam has no ammo reserve. Dark and Light Beams use their own ammunition, and the Annihilator Beam consumes both types; do not use it for every ordinary container when supplies are low.

Beam comparison
BeamAmmoMain role
Power BeamUnlimitedRoutine combat and basic switches
Dark BeamDark AmmoFreezing or binding targets and dark mechanisms
Light BeamLight AmmoStrong against dark creatures and light mechanisms
Annihilator BeamBoth typesHoming shots and sonic mechanisms

Use the right visor for the clue

Combat and Scan handle most exploration. Dark Visor reveals targets hidden from ordinary sight, while Echo Visor exposes sound-based information and mechanisms.

Visor reference
VisorRevealsWhen to switch
Combat VisorNormal surroundingsMovement and standard fighting
Scan VisorTarget records and device informationNew creatures, lore and controls
Dark VisorHidden dark-dimensional objectsInvisible targets and key-related searches
Echo VisorSound-based informationSonic locks and concealed sound targets

Recover the opposite ammunition

Destroy suitable containers with the Dark Beam to seek Light Ammo, or with the Light Beam to seek Dark Ammo. This makes beam choice part of resource management rather than a simple damage ranking.

An empty beam can still open its doors

When the relevant ammo is empty, holding a charge permits a basic special-beam shot. It is slower than ordinary fire but prevents colored doors from becoming a permanent ammunition lock.

References
Guide references
ReferenceWebsite
Original Nintendo manual archivewww.metroid.retropixel.net
Major upgradesmetroid.retropixel.net
Temple and Sky Temple Keysmetroid.retropixel.net
Door and obstacle referencemetroid.retropixel.net
Logbook referencemetroid.retropixel.net