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Name COTA-94
Gender Male (Robot)
Weapon/Power Various Built-In Weaponry, Auto-Repair System
Affiliation Neutral
Vitality MvC3: 910,000 UMvC3: 900,000
First Appearance X-Men: Children of the Atom (1994)
First Appearance in Comics X-Men #14 (Nov,1965)
Model COTA-01 (1994)
Voiced By Dan Hennessey (X-Men: CotA, MvC, MvC2)
Jim Ward (MvC3)
Company Marvel

"Resistance is futile. Accept your extermination."

Sentinels are a variety of mutant-hunting robots appearing in the Marvel Comics universe. A Sentinel appears in X-Men: Children of the Atom (Playable), Marvel vs. Capcom: Clash of Super Heroes (Assist Character), Marvel vs. Capcom 2: New Age of Heroes (Unlockable), Marvel vs. Capcom 3: Fate of Two Worlds (Unlockable), and Ultimate Marvel vs. Capcom 3 (Playable).


The Sentinels were invented by Dr. Bolivar Trask after he found that his own son had developed mutant powers. After being unable to suppress his son's growing mutant powers, Trask studied the nature of powerful mutations and came to the conclusion that mutants would eventually supplant normal humans as Earth's dominant race if no action was taken to control them. Soon after, Trask and a team of scientists developed the first Sentinel prototypes in a secret laboratory, intending to use them to capture and destroy America's mutants in an ambush. However, Trask realised that not all mutants were hostile to humans, and helped the X-Men to destroy his Sentinel manufacturing facility.

Since then, the majority of Sentinel designs and manufacturing is now under United States Government control, being used to aid the US military on some occasions in operations against mutants, and are constantly refined and improved in order to maintain their high degree of lethality. However, numerous cases exist where Sentinel designs and manufacturing secrets have fallen under the control of various villain organisations.

Though Sentinels are commonly seen as autonomous robots, some manned models have been developed, with the Sentinel's chest area housing a cockpit for the pilot. In addition, the anti-mutant protocols developed for autonomous Sentinels require them to protect humans from mutants, though their combat programming gives Sentinels a high degree of leeway as to how they do this. Thus, massive collateral damage is often the norm when Sentinels are deployed to capture or kill mutants.

Powers and Abilities

Though Sentinels are constantly being updated with new weapons and abilities, all models maintain the following abilities:

  • Darts: Sentinels carry ten steel javelin-like darts on the trunk that can be thrown to pierce an opponent.
  • Electric Insulation: Sentinels are especially protected against electric attacks.
  • Encephalo-Scanner: Sentinels are equipped with a scanner to read the brainwaves of a target and determine if it was telling the truth. This device is not infallible.
  • Energy Blast: Sentinels have various types of energy projectiles, including but not limited to plasma, electrons, stunners and heat, that could be shot from their chest or hands. They are also armed with a disintegrator that only affects inorganic matter.
  • Flight: Rocket jets built into their feet and hands allow for high-speed flight.
  • Learning Program: A special learning program allows Sentinels a certain advantage when fighting an enemy, but only after at least some seconds of analysis. This data can be stored for future uses against the same enemy, so that any Sentinel from any model can access the information. Any needed modification takes at least one week. In the 21st century, data on all known mutants, living or dead, is stored for quick reference.
  • Mutant Detection: Sentinels constantly scan all living beings in their immediate area and are able to determine if they are humans or mutants. The "immediate area" can cover up to ten miles.
  • Robot: Due to their nature, Sentinels are protected by the sheer strength of their hull. They cannot be affected by emotional or mental attacks, nor by illusions. However, they are susceptible to attacks affecting machinery.
  • Super Strength: Sentinels are known to lift at least seventy tons.
  • Self-Repair: Sentinels are able to repair themselves with a built-in repair kit, provided there are sufficient materials nearby to effect repairs.

In addition, some Sentinels are manufactured for a leader-type role, being much more intelligent than other Sentinels and able to learn, adapt to, and counteract the tactics and powers used by mutants to a highly developed, near instantaneous degree.

In X-Men: Children of the Atom

Sentinel is one of the playable characters in this game. Sentinel is lined up with the villains of the game. His ending shows him talking to Magneto about his plans failing and escapes Avalon. After that, Sentinel goes to attack Storm and does installments with the other Sentinels.


"Loading battle protocols."

True to its mutant-hunting design, the Sentinel is a lumbering engine of destruction. Though the latest patch has greatly reduced the Sentinel's health, it retains the highest damage-per-hit rating of any MvC3 character.

With its array of highly damaging projectiles and Level 1 Hyper Combos that can be used repeatedly and in quick succession, the Sentinel excels when using a keep-away strategy. However, the Sentinel also performs well at maintaining pressure against rushdown characters with constant air combos, even if they manage to close the distance. Its launcher attack is very damaging and has a long horizontal reach; once the Sentinel is in the air, its high damage-per-hit rating is put to good use, with a mere three or four normal hits taking large amounts of an opponent's health, all in addition to an aerial Rocket Punch coupled with a well-timed Hard Drive Hyper Combo that can be used for a final blow.

Once an opponent is knocked down, the downward hitting Rocket Punch can be used to "bounce" the grounded opponent. This leaves them vulnerable to yet more air combos, starting the Sentinel's cycle of destruction all over again.

Special Attacks

  • Sentinel Force: Sentinel points forward and sends three miniature Sentinels flying across the screen. Light attack has them fly toward the ground, medium has them fly towards the center of the screen from the floor, and heavy attack has them fly across the top of the screen and drop bombs.
  • Rocket Punch: Sentinel launches and retracts his fist. Light attack has him punch the ground and hits OTG, medium attack punches in front of him, and heavy attack punches the air.
  • Human Catapult: A command grab in which Sentinel grabs the opponent, lifts them up, and send them flying with a burst of electricity.

Assists in MvC2

Type Assist Counter Cross-Over
α Projectile Rocket Punch Rocket Punch Hyper Sentinel Force
β Launcher Standing Hard Kick Standing Hard Kick Hyper Sentinel Force
γ Ground Sentinel Force Sentinel Force Hyper Sentinel Force

Assists in MvC3

Name Type Angle Cross-Over
α Sentinel Force (Charge) Shot Tilt Up Hyper Sentinel Force
β Sentinel Force (Bombs) Shot Tilt Down Hyper Sentinel Force
γ Rocket Punch Direct Tilt Down Plasma Storm

Hyper Combos

  • Plasma Storm (Level 1) - Generates a powerful sphere of electricity, shocking anything that comes near it. In Marvel vs. Capcom 3, the Plasma Storm now envelops a much larger area than earlier versions.
  • Hard Drive (Level 1) - Creates a pyramid-shaped forcefield around its body and rams through the opponent, assisted by several mini-Sentinels. Can only be used in the air.
  • Hyper Sentinel Force (Level 1) - Aims for the opponent and sends three waves of three mini-Sentinels to attack the opponent. In Marvel vs. Capcom 3, the three mini-Sentinels are now grouped more tightly together.


X-Factor Boosts Damage Speed
Level 1 130% 110%
Level 2 150% 120%
Level 3 170% 130%

Changes in Ultimate Marvel vs. Capcom 3

  • Health changed to 900,000. Even lower than the Event Mode patch in the original version.
  • Changed S. Launcher properties from Hyper Armor to Super Armor.
  • Opponent's untechable time after a Rocket Punch has been decreased.
  • Push back from blocking Assist α from behind has been reversed.
  • Number of hits in Plasma Storm can be increased through rapid button presses.

Theme Song

Marvel VS Capcom 3 - Sentinel's Theme03:57

Marvel VS Capcom 3 - Sentinel's Theme

Sentinel's theme is a remix of the Genosha stage theme from X-Men: Children of the Atom; Sentinel's own stage in the game.


Marvel vs Capcom 3 Sentinel Reveal Trailer01:13

Marvel vs Capcom 3 Sentinel Reveal Trailer

Special Quotes

UMVC3 Sentinel Quotes01:36

UMVC3 Sentinel Quotes


Spoiler Alert










  • Sentinel's alternate color schemes are the infamous "Mango Sentinel" scheme from Marvel vs. Capcom 2, which was featured in the MAHVEL, BAYBEE! video; plus schemes based off the Second Coming sentinels and the sentinels from the game X-Men: Mutant Apocalypse. Ultimate gives him new schemes based off of Nimrod and a classic turquoise Sentinel. His Ultimate pre-order DLC costume is his old-school red/purple appearance.
  • One of his Ultimate winquotes has him stating that his programming is evolving and becoming Bastion. Unfortunately, his evolutionary process is halted by Capcom pressing B. This is a reference to the popular series of games called "Pokemon".
  • His winquote against Wolverine references Operation: Zero Tolerance, a storyline involving Sentinels that touched all the X-Men books in the mid-late 90s.
  • Gameinformer voted Sentinel one of the top ten fighting game characters due to how overpowered he is.
  • He was confirmed alongside Hsien-Ko, possibly to present a rivalry theme of magic vs. technology. They both have a mastery of their hidden weapon systems with their respective abilities; Hsien-Ko conceals an arsenal of medieval weaponry in the sleeves of her outfit using her abilities as a Darkstalker, whereas Sentinel has an arsenal of high-tech weapon systems incorporated directly into its mechanical body.
  • The Sentinel in MvC3 resembles the Mark V model in the X-Men comics. However, Sentinel's character model is much smaller in-game than in the comics due to the fact that if he was in original size he would be too big to play as. In Marvel continuity, Sentinel's height is approximately 20 ft (6 meters), while in MvC3 the Sentinel appears to be at least 11 ft tall (almost 3.5 meters).
  • Sentinel, much like Magneto, also received an alternate costume created by the fans, being dubbed "Da Mango Sentinel" by Yipes from the Mahvel Baybee Video.
  • In his reveal trailer, Sentinel was paired up with Storm and Magneto, which could be referencing one of the most popular team-ups of Marvel vs. Capcom 2 due to how overpowered the trio was.
  • Due to not having their own conscience, Sentinels can be classified as Neutral characters, since they loyally serve those who built them, regardless of their masters' alignment. But to their purpose of hunting down mutants, including the X-Men, they are also classified as Evil characters.
  • Sentinel is one of four unlockable characters in the game, along with Hsien-Ko, Akuma and Taskmaster. To unlock Sentinel, players must accumulate 4,000 Player Points.
  • Sentinel, along with Captain America, Spider-Man, Shuma-Gorath, and Doctor Doom, are the only Marvel characters in MvC3 to retain their respective themes in all the games they have been playable in.
  • Sentinel used to have the highest stamina/health of all the characters in MvC3 with 1,300,000. On March 22, he was nerfed, dropping his total health to 905,000.
  • After defeating X-23, Sentinel detects that she has the same DNA as Wolverine (which would imply that, surprisingly, Sentinel can't comprehend the existence of clones). Although it can tell the difference between mutants and mutates (e.g. artificially mutated humans) as it determined that Albert Wesker was a mutated human (i.e. Wesker's power enhancements are the result of cellular manipulation) after defeating him. However, this does not seem to apply to Deadpool.
  • In Sentinel's ending, one of the Sentinels is seen dragging a grievously injured Dan to an unknown location inside a Sentinel base.
  • Sentinel seems to have mistaken Tron Bonne's Servbots as Sentinels who have been re-programmed and re-designed for her needs; it then seizes all Servbots and arrests Tron as Sentinel's post-match victory quote says "Target apprehended. Fraudulent Sentinel production halted."
  • Though the Sentinels were built for the purpose of protecting humanity, Zero's pre-fight quote to Sentinel has him calling it a Maverick (a rogue robot; commonly, one that wishes to harm humans).
    • Coincidentally, the Sentinels are against the X-Men despite both sides serving humanity (the X-Men are mutants who serve the human race, while the Sentinels are programmed to protect humanity from mutantkind even if it means hunting down the X-Men), which is why they are referred to as "Mavericks of the Marvel Universe".
  • Its official biography in the Marvel vs. Capcom site states that this model might be found in-game only.
  • Sentinel's name, COTA-94, is a reference to X-Men: Children of the Atom, the first Capcom fighting game to feature X-Men characters. The game was released for arcades in 1994.




Also See

Sentinel's moves in Marvel vs. Capcom 2: New Age of Heroes

Sentinel's moves in Marvel vs. Capcom 3: Fate of Two Worlds

Sentinel's moves in Ultimate Marvel vs. Capcom 3

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