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Omni-Kix Four Arms is the Omnitrix's Omni-Kix version of Four Arms.


Omni-Kix Four Arms is essentially a robotic/armored version of Four Arms. His helmet is red and has black protrusions resembling the head stripes on his normal counterpart as well as two green visors, with the mandible area being further reinforced by darker red plating. His shoulders, forearms and hands are covered by white plating, with his wrists having additional red plating. His torso and legs are encased primarily in black armor, with a red plate running across his chest, red thigh holsters, kneecaps and toe coverings and grey shin guards.

Omni-Kix Four Arms wears the Omnitrix symbol on his chest.

Powers and Abilities

Omni-Kix Four Arms shares the same abilities as his default form, namely his enhanced strength.

Omni-Kix Four Arms is more durable thanks to his Omni-Kix armor.[1]

Omni-Kix Four Arms gains powerful armour-clad boxing gloves and intense punch power.

Omni-Kix Four Arms has the ability to launch his fists like rockets and then reattach them at will. If he times out when his fists are not attached to him, they will not be timed out alongside, rather they will still be intact.[2]

Omni-Kix Four Arms' fists can alternatively be attached to his feet instead of his arms, letting him grab onto structures and prevent him from falling due to enemy attack.[3]


Omni-Kix Four Arms shares the same weaknesses as his default form; namely, his large size makes him a slow and easy target.

Omni-Kix Four Arms's large size also prevents him from accessing certain areas that prove to be too small for him.

Despite his increased durability, Omni-Kix Four Arms can still feel pain from being bitten by Toothache.[2]


Ben 10


Ben 10

Season 4

Video Games

Cartoon Network Arcade

Mechanoid Menace

Omni-Kix Four Arms is a playable alien in the game. He cost 2000 coins, and his special attack is rocket fist to prevent enemies from getting past you.


  • Omni-Kix Four Arms was the first Omni-Kix alien to appear after Ben unlocked the Omni-Kix feature.
    • Omni-Kix Four Arms was the last Omni-Kix form used in the reboot.


Introduced in Season 1 CannonboltDiamondheadFour ArmsGaxGrey MatterHeatblastOverflowStinkflyUpgradeWildvineXLR8
Introduced in Season 2 RathShock Rock
Introduced in Season 3 HumungousaurSlapback
Introduced in Season 4 GoopJetrayWay Big
Introduced in Season 5 Big ChillBloxxBuzzshockChromastoneRipjawsSpidermonkeySurge
Omni-Enhanced Aliens CannonboltDiamondheadFour ArmsGrey MatterHeatblastOverflowStinkflyWildvineXLR8
Omni-Kix Aliens CannonboltDiamondheadFour ArmsHeatblastHumungousaurJetrayRathShock RockSlapbackXLR8
Omni-Naut Aliens HeatblastJetrayHumungousaurShock Rock
Fusion Aliens Amalgam AlienAmalgam BenGrey ArmsXLRArmBlastDiamondHeat
Non-Canon Aliens Banana AlienBlack Hat AlienHotdawgMole-StacheScooter Alien
Non-Canon Fusion Aliens Omnitrix Glitch FusionDiamondhead-Humungousaur FusionRath ArmsShock Blast