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Meta Ridley chest plate

Samus targeting Meta Ridley's thin chest plate.

Chest plates are protective armor used by multiple bosses and other entities in the Metroid series.

Meta Ridley and Omega RidleyEdit

Omega Ridley Phazite chest armor

Omega Ridley's Phazite armor.

As part of his cybernetic enhancements, Meta Ridley is given a mechanical chest plate. It guards a severe wound in his chest, likely a result of Ridley's defeat during Samus's Zero Mission. This serves as his weak point during the battle with him in Metroid Prime and Metroid Prime 3: Corruption, and Samus exploits it to defeat him. It is rather thin and weak in Prime, and Ridley protects it by shielding it with his arm or staying in a crouched position. Sufficient damage to his mouth will stun him long enough for Samus to attack his chest.

In Corruption, Meta Ridley does not use a chest plate, and Samus can freely attack his chest. As Omega Ridley, he receives a stronger chest plate, made of Phazite. It is referred to as "protective armored plating" in Omega Ridley's Logbook entry. Samus can still destroy it using her Nova Beam when Omega Ridley is stunned. He will regenerate it twice, before he stops trying to protect his wound and instead goes on the defensive.

Omega MetroidEdit

Metroid Samus Returns Metroid (Stage 7) Omega Metroid Growing Chest Armor (Cutscene)

An Omega Metroid forms its chiton armor.

The Omega Metroids in Metroid: Samus Returns have organic chest plates, referred to as "chiton armor" on page 22 of the Metroid: Samus Returns Official Guide. The "armor" creates a thick, ribcage-like covering over the core of an Omega Metroid. This means that unlike Alpha, Gamma or even Zeta Metroids, the Omega Metroid can defend its weak point. Omega Metroids do not have this ability in Metroid II: Return of Samus.

It should be noted that the correct term for this armor would be chitin, and not chiton. However, the only source that names this armor uses the latter term.

Samus can destroy the chiton armor gradually with Missiles, Super Missiles and Ice Beam shots, and can destroy it instantly with a Power Bomb. When the armor is destroyed, the Omega Metroid recoils back twice, and the exploding armor releases Missile and Super Missile Ammo, and Energy Capsules. After the armor is removed, the Omega will attempt to lunge at Samus, opening itself up to a Melee Counter followed by a Grab Sequence where Samus can inflict damage to the membrane. After the Grab Sequence is over, the Omega Metroid will regenerate its armor, although the chiton will be visually thinner and cover less surface area than before. After it is broken a second time, the armor will not regenerate, leaving the membrane exposed for the remainder of the battle.

Chiton armor, or at least a similar predecessor ribcage covering its membrane, can be seen on the Omega Metroid's original design in Return of Samus and especially Metroid Fusion. However, unlike in Samus Returns, this early chiton armor is completely aesthetic and does not protect the Omega Metroid in gameplay.

Queen MetroidEdit

Queen Metroid side

The Queen Metroid on its side, with its "chiton armor" exposed.

Queen Metroids also appear to possess chiton armor, although it does not fully protect the Queen Metroid's membrane from attacks, as seen in Metroid: Other M. The Queen makes up for this weakness by always standing in a quadrupedal position, making it impossible to target the membrane. In Return of Samus and Samus Returns, Samus can attack the Queen's membrane from the inside if she allows herself to be swallowed. The only reason Samus can shoot the second Queen Metroid in its membrane is because it was flipped on its side after the BOTTLE SHIP's emergency brakes were engaged. The Wave and Plasma Beam are able to penetrate the weak armor.

Samus AranEdit

Samus chest plate

Samus's chest plate, as it appears in Metroid Prime 3: Corruption.

Samus Aran's Power Suits contain a signature, usually red chest plate, although this plate has no extra utility beyond protecting her body. The thrusters of her Power Suit are attached to the chest plate. There are two lights on this chest plate, which will sometimes flare. It has a basic design, with the most radical change to it coming from the Light Suit, which replaces the usual design with a quartet of circles that glow when in Dark Aether. It is possible that they are a power source for the rest of the suit, providing Samus immunity from the toxic atmosphere.

The PED Suit's Auto Vent is used by pressing a button on its chest plate, which Samus uses after landing on Phaaze to avert a Phazon Overload. Samus also presses a button on her chest plate in the Special Ending of Metroid Prime 3: Corruption to remove her Varia Suit. Dark Samus, the SA-X and other doppelgangers of Samus use warped or identical versions of her chest plate.

Other chest platesEdit

The Ancient Chozo Robot in the Metroid 1.5 design document was outfitted with a chest plate, which multiplayer contestants would enter and use to control the robot.

Official dataEdit

Omega Ridley temporary scansEdit

Armor open
"Armor has been pulled open. Cardiac region is now exposed. Vulnerable to Phazon energy."
Armor regenerated
"Phazite armor is now covering cardiac region. Armor is invulnerable, but internal joints seem weak."
Armor destroyed
"Armor has been destroyed. Cardiac region is now exposed. Vulnerable to Phazon energy."

Meta Ridley trophy (Super Smash Bros. Brawl)Edit

"The meta form of Ridley, revived using the Space Pirates' genetic engineering and cybernetic technologies. His thin chest plate--and weak point--is protected by a highly resistant membrane."

Metroid: Samus Returns Official GuideEdit

Omega Metroid (p. 22)
"Evolution has also done away with the Metroid's trademark weak point: the core. While the core is still there, the Omega's chiton armor plating hides it deep in its chest. The only way to reach it is to force your way in with explosive attacks, but even then, you have a short amount of time to strike before the chiton self-repairs and covers the core once more."

GalleryEdit