The Parasite X is a lifeform native to the planet SR-388 (Where Metroid II: Return of Samus and Metroid Samus Returns takes place on) that was deemed too dangerous to be left out in space by the Chozo. To make sure their threat did not reach all corners of the cosmos, the Chozo undertook the mission of creating a life form to surpass them in the food chain, the Metroid.
However, when the Space Pirates raided Zebes and discovered the potential of the Metroid as bio-weapons, it eventually resulted in Samus Aran wiping out the Metroid species once and for all. This inevitably lead to the events in Metroid Fusion, the chronologically last game in the series.
Powers and Stats
Tier: Varies, can range from 7-C to 5-B
Names: X, Neo Ridley, SA-X, Arachneus-X and many others. (Generally is just called the original host with the addition of X at the end, with the sole exception being Ridley.)
Origin: Metroid Fusion
Powers and Abilities: Superhuman Physical Characteristics, Enhanced Senses from SA-X and Zazabi, Scan Visor (Gives out basic information and weaknesses), Precognition, Regeneration (Mid), Energy Projection, Weapon Mastery, Plant Manipulation from the Nettori, Vehicular Mastery, Ice Manipulation, Electricity Manipulation, Can absorb and redirect energy projectiles, Can enhance her AP by charging its attacks, Barrier and Armor Bypassing with Wave Beam, Weaponized Plasma, X-Ray Visor, Speed Boosting, Invulnerability with Screw Attack, Electro Armor, a "Dark Mode", from the Golden Zebesian, and Speed Booster, Internal Organ damaging with Plasma Beam, Healing (At least Mid-Low with Crystal Flash and Low with Concentration), Fire Projection, Life Absorption and Size Manipulation as Yameba, Flight, Extendable tail, Transformation, Intangibility (Immaterial), Possession, Shapeshifting, and Duplication, Acid Projection from Genesis-X, Resistance to the following, Acid, Gravity, Heat, and Absorption (Freezes the character who attempts to absorb it).
Attack Potency: Varies, ranges from Town level (Through various X variations of SR-388's wildlife, including Arachnus and Serris), up to Planet level (Has infected and mimiced both Ridley and Legendary Varia Suit Samus Aran).
Speed: Ranges from Massively Hypersonic+ to Massively FTL+. (Has tagged targets ranging from Serris to Samus and Ridley)
Lifting Strength: Varies from At least Superhuman to Class 50 (Should be equal to Samus Aran and Ridley.)
Striking Strength: Varies from Town Class to Planet Class.
Stamina: Virtually limitless
Range: Varies from a few meters to Stellar.
Standard Equipment: None Notable
Intelligence: Varies from Low to Genius (Absorbs the intelligence of the host, which includes most of the G.F. scientists and Samus Aran)
Weaknesses: Weakened by Metroids, other than that, none notable.