The Power Bomb Guardian is a Sporb possessed by the Warrior Ing who stole Samus's Power Bomb ability. Samus retrieves the item by defeating this creature.


The last of the Sub-Guardian bosses, Samus fights the Power Bomb Guardian in the Undertemple of the Dark Torvus Bog. Ing possession has enabled the Sporb to fire Power Bombs rather than needles, and it is also impervious to Samus's weapons. The only way Samus can destroy the creature is by crushing it with the bridge that is suspended above the Darkling; to do this, Samus must ride Spider Ball Tracks around the room and lay Bombs in the four Bomb Slots holding the bridge clamps in place. It is advised to save the most easily accessible bomb slots for last. The Guardian will attempt to disengage Samus from the tracks by throwing multiple Power Bombs in her direction. The Guardian possesses some level of intelligence, as it seems to predict Samus' movements and target areas in front of Samus, rather than where she is. Many Inglets also defend the creature from the ground.

Once all four bomb slots are activated, the ceiling locks disengage, and the bridge crushes the Power Bomb Guardian to a pulp. A new track opens up, allowing Samus to reach the ceiling area and reclaim her Power Bombs.

Logbook entryEdit

Power Bomb Guardian

Metroid Prime 2: Echoes

Temporary scan

Morphology: Power Bomb Guardian
Power Bomb dropping darkling.
Target can generate and fire high-yield explosives at will. Only massive kinetic damage will damage this enemy.

Logbook entry

This darkling Sporb has absorbed the ability to generate Power Bombs. It can fire these dangerous weapons instead of the venomous needles it normally shoots. The energies of the Power Bomb weapon have made it all but invulnerable. Tremendous kinetic damage will override the protective field, however.


  • The Power Bomb Guardian is the only Sub-Guardian that was a possessed plant and the only Darkling Sporb seen in the entire game. A Dark Sporb was scrapped.
  • The Power Bomb Guardian and the Spider Guardian are the only bosses that are not directly harmed by Samus's weapons.
  • In the data for Metroid Prime 2: Echoes Bonus Disc, the Power Bomb Guardian was named Powersporb.