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Nightmare (Metroid)

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Samus battling Nightmare in Metroid Fusion.

Nightmare is a creature infected by the X Parasites and is the eighth boss Samus faces aboard the Biologic Space Laboratories research station in Metroid Fusion. It also appers as a boss in Metroid: Other M.


Samus first encountered Nightmare in Metroid: Other M while on her journey to Sector Zero on the Bottle Ship. The creature fights Samus once when she tries to enter Sector Zero and again after she activates her Gravity Suit in which Nightmare's organic face is visible. After it is defeated, its corpse rests on the ground until the post-credits sequence; this may imply that the Federation moved it to the Biologic Space Laboratories research station for its appearance in Metroid Fusion.

In Fusion, Nightmare is described as a "a bio-mechanical organism designed for military applications" that "possesses uncommon power and can manipulate gravity". When Samus leaves Sector 5 for the first time, she catches glimpses of Nightmare flying around behind the large windows (possibly its containment tank), causing the entire room to shake violently. It also appears when she is entering and leaving Sector 5 while obtaining the Power Bombs, though it is never mentioned by Adam after any of these encounters. After Samus obtains the Plasma Beam, Adam detects an explosion in Sector 5 and tells Samus to investigate. When she arrives, Samus finds most of the sector in ruins. Exploring further, she eventually finds the X-infected Nightmare in a uniquely mechanized room. It is interesting to note that the Nightmare appears damaged. The damage adds to its nightmarish appearance, making it look decomposed and rotting.

Boss Battle

Metroid: Other M


Nightmare (Other M)

Nightmare in Other M

Nightmare floats in the middle of the room firing energy blasts at Samus, and will sometimes spin in one place, firing energy lasers, and may even try to run through the platform to ram Samus. Eventually, Nightmare will manipulate the gravity and slow Samus down. This will allow it to attack Samus more easily. Sometime, Samus will freeze its Gravity Manipulator, and she will be able to fire at its face. This will destroy the plating, and cause it to fall to the bottom of the room. Believing Nightmare to be dead, Samus ventures off to Sector Zero.

Nightmare Unmasked

Nightmare Unmasked (Other M)

Nightmare Unmasked (Other M)

As Samus leaves the area after inspecting Sector Zero, Nightmare's body suddenly rises up and attacks her in its unmasked form. It also gains back all its health. Nightmare has the same attacks as before, but will now fire a laser from its face and also shoot large orbs which suck in all of Samus's shots, including the Power Beam. Occasionally, the unmasked Nightmare will fall to the ground, only to rise up again. When defeated, it will explode, its arms and tail separated from the body as it lies on the ground, officially defeated.

Metroid Fusion

In Fusion, Nightmare has three phases, not including its Core-X form. It remains mostly the same as in Other M.

Phase 1

During this phase, Nightmare will stay in front of Samus and shoot bursts of lasers from its arms at regular intervals. These bursts can be difficult for Samus to jump over as it shoots them in a spread. Its weak point is the Gravity Manipulator - the glowing purple protrusion connected to its central body. Normally, its arms will be blocking it, so Samus must lure the Nightmare up by jumping high, then coming down and getting a shot or two at it using the charged Plasma Beam or an Ice Missile. Once it has been sufficiently damaged, the Nightmare enters its second phase.

Phase 2

Nightmare Unmasked (Fusion)

Nightmare Unmasked (Fusion).

The Nightmare's Gravity Manipulator starts running, lowering the height of Samus' jumps and the distance which her missiles may travel, forcing Samus to rely on her charged Plasma beam. The Nightmare will begin to move slowly back and forth; its eye sockets also begin to emit a slimy, green substance. After taking sufficient damage, the Gravity Manipulator is destroyed, returning gravity to normal. Nightmare's face mask then explodes, revealing its true face, upon which it enters its third and final phase.

Phase 3

The Nightmare will begin to move erratically around the room, becoming difficult to dodge. Its exposed face functions as its weak spot. Samus must utilize the ladder and the Space Jump to effectively avoid attacks and aim counterattacks. When the Nightmare (along with its Core-X) is defeated, Samus's Gravity Suit is restored.

Metroid Villains


Metroid | Space Pirates | Kraid | Ridley | Mother Brain

Metroid: Zero Mission
King Worm | Imago | Ruins Test | Ridley Robot

Metroid II: Return of Samus
Alpha Metroid | Gamma Metroid | Zeta Metroid | Omega Metroid | Queen Metroid

Super Metroid
Phantoon | Draygon

Metroid: Other M
The Deleter | Vorash | Ridley | Nightmare | Melissa Bergman

Metroid Fusion
X Parasites | B.O.X. | Nettori | Nightmare | Neo-Ridley | SA-X | Omega Metroid

Metroid Prime
Parasite Queen | Flaahgra | Thardus | Omega Pirate | Meta Ridley | Metroid Prime

Metroid Prime 2: Echoes
Dark Samus | Amorbis | Chykka | Quadraxis | Emperor Ing

Metroid Prime 3: Corruption
Omega Ridley

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