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Give up, Trombipulor, I've got you outnumbered. Four arms to two!

– Four Arms.[1]

Four Arms (alternatively spelled as Fourarms)[2] is the Omnitrix's DNA sample of a Tetramand[3][4] from the planet Khoros.[merch 1]


Ben as Four Arms

Four Arms is a humanoid alien that is approximately twelve feet tall, has well-developed muscles, two pairs of four-fingered arms, and red skin. A black stripe goes from his chin to his lower lip, and he has four eyes: a main pair and a smaller pair below them, while he lacks ears or nose. He has whisker-like spikes on each forearm.

In the Original Series, Four Arms wore a white T-shirt with a black line going down it, black pants, and fingerless gloves. He wore the original Omnitrix symbol on his upper left shoulder. His eyes were yellow and he had no hair.

While when under the effects of a cold in Side Effects, his skin turns from bright red to a dark shade of orange, and he develops pungent hives in his armpits.

In Game Over, while inside Sumo Slammers Smackdown, Four Arms wore brown shoulder pads and knee pads, grey armor under his shoulder pads as well as black pants. He wore the Omnitrix symbol on a hat on top of his head.

In Don't Drink the Water, 4-year-old Four Arms was slimmer than his 10-year-old self, and had a bigger head and bigger eyes.

In Destroy All Aliens, Four Arms remains the same except he had pale red fingernails and his clothing has some type of fabric on the black stripe.

In Ultimate Alien, 16-year-old Four Arms wore gold wrist and ankle bands, a pair of black underwear that has a gold waistband, as well as two golden sashes that went across his chest. His eyes were recolored green, he had a black ponytail, and he wore the Ultimatrix symbol on his chest.

In The Forge of Creation, 10-year-old Four Arms looks exactly the same as in the Original Series except the Omnitrix symbol was recolored green.

In Heroes United, Four Arms, in addition to his clothes in Ultimate Alien, wore pants, fingerless gloves, and had tattoo-like stripes on his body, making him look somewhat similar to his Original Series design.

In Omniverse, 11-year-old Four Arms looks the same as his 10-year-old self in Ultimate Alien, except his eyes are recolored green, his skin is a lighter tone, and he has a second set of pectorals for his other set of arms.

16-year-old Four Arms has three short spikes on the top of his head, a mustache-like design, the black stripe on the top of his head is replaced with small spikes and the same second set of pectorals as his 11-year-old self. He has no hair and wears a black tank top-like shirt with one large green stripe in the middle, black pants, a green and white belt where the Omnitrix symbol is located, and black fingerless gloves with green cuffs at the wrists.

Kevin as Four Arms

Kevin's Four Arms looked the same as Ben's did in the Original Series, but with paler skin and no Omnitrix symbol.

Gwen as Four Arms

Four Arms had darker skin, hair and clothes based on Gwen's, and lacked the vertical black stripe sported by Ben's version. Just like Ben, Gwen's Four Arms wore the Omnitrix symbol on her upper left shoulder.

Ben 10,000 as Four Arms

Ben 10,000's Four Arms had a better-developed forehead, more muscle mass, a different T-shirt design and a pair of jutting incisors. He wore the Omnitrix symbol on his chest.

Alpha as Four Arms

Four Arms looked roughly similar to Kevin's Tetramand mutation, only he had four arms rather than six. He had four red eyes, black hair, and black shorts. He wore a Red Corrupted Ultimatrix on his chest, and there were red lines spread across his body.

Powers and Abilities

Four Arms' most prominent ability is his enhanced strength, being able to lift several times his own weight and punch through various resilient materials with ease. Since Four Arms is one of Ben's strongest aliens in the Original Series, he relied on him the most when fighting large and powerful foes. Technically speaking, Four Arms is physically stronger than Methanosians and Vaxasaurians at base size.[DM 1]

Four Arms' strength allows him to use anything heavy as a weapon, from big rocks he can throw several feet away, to beams and pillars that can be used as clubs. His great strength even extends to his jaws and bite, allowing him to bite metal and damage it.[5] He even develops two sharp fangs between his lower jaws as he gets older.

The older Four Arms grows, the stronger he becomes.[6] By age 16, Four Arms has become strong to the point where he was able to overpower Looma Red Wind, the princess of Khoros, despite female Tetramands being generally stronger than their male counterparts.[7][8]

Four Arms can create strong shockwaves by clapping all four of his hands together.[9][10][11] Ben learned this ability from Tini.[pop-up 1][9][merch 2]

Four Arms can alternatively create shockwaves by slamming his fists on the ground.[10][12]

Four Arms can jump several times his own height, at least seven stories up, in a single bound.[13][12][1]

Four Arms has enhanced reflexes, as he was able to catch and redirect missiles[4] in a single motion.[14] Four Arms is also capable of swimming.[10]

Four Arms can climb up walls by pushing his fingers into them to make hand holds.[15]

Four Arms has a high level of enhanced durability due to his tough and thorny skin,[pop-up 2][9] being able to casually take missiles from a Mechadroid[16] and a slash to the chest from Malware while barely feeling any pain.[17]

In correlation to his durable skin, Four Arms is highly resistant to fire, such as that generated by a Pyronite.[18] His skin also makes him laser-proof.

When infected with a cold, Four Arms can sneeze out sprays of slimy snot from his mouth, and although disgusting, this can be useful against insects.[19]


Four Arms' bulk can sometimes become a disadvantage, as all the extra muscle mass makes him relatively slower than other opponents and his immense size makes him an easy target for enemy attacks.

Four Arms' size can make moving through areas designed for small species, like the Rust Buckets 1[20] and 2,[21] difficult.

Four Arms can feel pain from electricity, such as those generated by Nosedeenians[22] and Gimlinopithecus.[11]

Four Arms can get drowsy by Porcupine's quills.[23]

If under the effects of a cold, Four Arms' strength and stamina are severely reduced.[19]

Four Arms can feel great discomfort while being attacked by a swarm of fire ants.[19]


Ben 10

5 Years Prior to Omniverse

Ultimate Alien


Original Future

Gwen 10 (What-If?)

  • In Gwen 10, Gwen as Four Arms played bowling.



16-year-old Ben
Season 1
Season 2
Season 3
10-year-old Ben
Season 2

11-year-old Ben
Season 1
16-year-old Ben
Season 2
Season 3
Season 4
Season 5
Season 6
Season 7
Season 8
Season 8

Video Games

Ben 10

Four Arms is a playable alien in the game.

Ben 10: Protector of Earth

Four Arms is one of the first aliens available. He also has unlockable Dark Heroes and DNA Force skin. His special attack (which involves throwing a rock at his opponent) is the most powerful out of all the other playable characters in the game.

Ben 10 Ultimate Alien: Cosmic Destruction

Four Arms is an exclusive character for the PS3 version of the game, similar to how Rath is an exclusive for the Xbox 360. Both have super strength as their main power. Four Arms can be unlocked by either completing the game or by entering the cheat code, "classic".

Since he is treated as an exclusive alien to a certain console, Four Arms is not required to be used at all in order to complete the game.

Ben 10: Galactic Racing

Four Arms is a playable racer in the game.

Ben 10: Omniverse

Four Arms is a playable alien in the game (by both 11-year-old and 16-year-old Ben).

Ben 10: Omniverse 2

Four Arms is a playable alien in the game.

Punch Time Explosion XL

Four Arms is the "Punch Time Explosion" attack and "Synergy Attacks" for Young Ben.

Project Exonaut

Four Arms is a playable Exosuit of the Atlas Brigade on Project Exonaut. His Weapon Mod increases the speed of the Ballista. Four Arms is available for purchase at level 30 for 2000 coins.


FF Nano Four Arms.png

The Four Arms Nano is a miniature version of Four Arms that supports the player in FusionFall.

Powers and Abilities

  • Seeing Red
  • Four Hand Grab
  • Over Power

Naming and Translations

Language Name Origin
Albanian 2 herë 2 From 2 herë 2, 2 times 2
Arabic فور ارمز From ارمز, arms, and فور, four
Bulgarian Четириръкия From четириръкия, four-armed
Chinese 四手霸王 From 四手 (Sì Shǒu), four arms, and 霸王 (Bà Wáng), overlord
Croatian Rukati The one with many arms
Dutch Quatre-Bras From quatre, four, and bras, arm
Filipino Apat Na Braso From apat, four and braso arm
French Quad From the Latin prefix quad, four
German Die Krake From krake, squid
Greek Τέσσερα Χέρια From tέσσερα, four, and xέρια, arms
Hebrew ארבע זרועות From ארבע, four, and זרועות, arms
Hungarian Csupakar From csupa, many, and kar, arm
Indonesian Lengan Empat From lengan, arm, and empat, four
Italian 2 x 2 From due per due, two times two
Japanese フォーアームズ From フォーアー (fōā), four and ムズ (muzu), arms
Korean 슈퍼파워 From 슈퍼파워, superpower
Polish Czteroręki From cztery, four, and ręce, hands
Portuguese (Br) Quatro Braços From quatro, four, and braços, arms
Romanian Patru Braţe From patru, four, and braţe, arms
Russian Силач/Четырёхрукий From силач, strong man
From четырёхрукий, four-armed
Serbian Четвороруки (Četvororuki) From четири (četiri), four, and руке (ruke), arms
Spanish (HA) Cuatrobrazos
Cuatro Brazos
From cuatro, four, and brazos, arms
Spanish (Spain) Cuatrobrazos From cuatro, four, and brazos, arms
Swedish Fyr-Arm From fyra, four, and arm, arms
Turkish Dört Kol From dört, four, and kol, arm


  • Four Arms was first envisioned as a superhero named StrongGuy. Dave Johnson designed Four Arms for the Original Series, which became the first design to get greenlit on the show.[DJ 1]
    • The design that was greenlit had few changes from Dave's original sketch,[DJ 1] the most important one being that he had to make the secondary arms smaller than the primary arms so that they would not jut out.[DJ 2]
  • Four Arms is Dave's favorite alien because he was the first one to get approved for the Original Series.[DJ 3]
  • Four Arms resembles Machamp from the Pokémon franchise, Mehrunes Dagon from the Elder Scrolls franchise, and both Goro and Kintaro from the Mortal Kombat franchise, the latter of which is more noticeable able with his appearance in Ultimate Alien.
    • Despite that, Dave noted that he did not take inspiration from pre-existing characters when drawing Four Arms.[DJ 2]
  • Four Arms is the first alien used by 11-year-old Ben in Omniverse.
  • Four Arms needs twice as much deodorant as a human.[AC 1]
  • Four Arms was initially planned to be one of the playable aliens in the Game Creator, but was soon removed from the game entirely when Alien Force aired.
  • Four Arms is one of Ken's favorite aliens.[22]
  • In the pre-production stage of Omniverse, Four Arms originally had a pair of jutting incisors, a different outfit equipped with shoulder pads and the Omnitrix symbol on his chest, as seen in Derrick J. Wyatt's roughs.[DJW 1] Someone else made the final model based on them.[DJW 2]
  • In Goodbye and Good Riddance, a kid at Ben's school called Four Arms "Quad Hands" until Ben corrected him, similar to how Jimmy thought Jetray's name was "Jeffrey" until he was corrected by Ben in Fame.
  • 11-year-old Four Arms is replaced with Gutrot in the opening intro of Omniverse's Arc 5. In the same intro, 11-year-old Four Arms is also replaced with 11-year-old Blitzwolfer, specifically in the part where the former originally appeared alongside the 11-year-old versions of Eye Guy, Grey Matter, and Snare-oh.
  • Four Arms' transformation sequence was the first one to be designed.[AC 1]
  • Richard McGonagle considers Four Arms to be his toughest cartoon role, stating that he sounds like he had just gargled glass.[AC 2]
    • Nolan North auditioned to voice Four Arms in the Original Series, but lost the role to Richard.



  1. File:Four Arms Bandai Card.png
  2. Azmuth and Galactic Enforcers Ben DVD; file

Crew Statements

Dwayne McDuffie

Dave Johnson

Derrick J. Wyatt


Audio Commentary

See Also

Introduced in Ben 10 ArctiguanaBlitzwolferBuzzshockCannonboltDiamondheadDittoEye GuyFour ArmsFrankenstrikeGhostfreakGrey MatterHeatblastRipjawsSnare-ohSpitterStinkflyUpchuckUpgradeWay BigWildmuttWildvineXLR8
Introduced in Alien Force Alien XBig ChillBrainstormChromastoneEcho EchoGoopHumungousaurJetrayLodestarNanomechRathSpidermonkeySwampfire
Introduced in Ultimate Alien AmpfibianArmodrilloChamalienClockworkEatleFasttrackJuryriggNRGShocksquatchTerraspinWater Hazard
Introduced in Omniverse AstrodactylAtomixBall WeevilBloxxBullfragCrashhopperFeedbackGravattackGutrotKickin HawkMole-StachePesky DustThe WorstToepickWalkatroutWhampire
Future Aliens SandboxShellheadSnakepit
Ultimate Aliens AlbedoArctiguanaBenBig ChillCannonboltEcho EchoGravattackHumungousaurRathSpidermonkeySwampfireWay BigWildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Concept Fusion Aliens GravadactylXLRG
Other Aliens in Official Media 10/10/10 Box AliensAntigraviteslaBob the BlobCartoon Network AlienEon (Retconned)MoyoInvinciblePlantapocalypsePortalerRocksShadowmanSquidstrictorStretcheleo