Rebootomnitrixsymbol This article belongs to the Reboot Continuity

Slapback is the Omnitrix's DNA sample of an Ekoplektoid from the planet Ekoplekton.[DR 1]


Slapback takes the appearance of a green humanoid frog with grey metallic eyebrows. He wears a blue, black, and white jumpsuit covering all except for his arms and feet, as well as a grey and black mask.

Slapback wears the Omnitrix symbol on his back.

Slapback's voice becomes higher pitched the more he duplicates.

Powers and Abilities

Slapback is capable of duplicating himself to an unknown degree when his back is struck or sufficient pressure is applied on it. The clones are not linked in any way and can act independently from one another.

Each time he duplicates, the resulting clones become smaller, heavier, denser and stronger by a proportionate amount. For example, upon duplicating for the first time, the clones are half his original size and twice as heavy, dense and strong. It is possible for Slapback to duplicate enough to become as dense as a black hole.[DR 2]

He is also able to allow the clones to fuse back together into the original Slapback form.


Slapback seems unable to control his duplicating power, as each strike on his back forces him to duplicate unwillingly, and the weight of each duplicate may cause issues to his surroundings.

Since each of the clones have a sense of individuality, Slapback can end up fighting himself if incensed.



Ben 10

Season 3

Naming and Translations

Language Name Origin
Italian Sdoppione From sdoppione, splitter
Russian Шлепок
From шлепок, slap
From the original English name
Turkish bölgeç from slapback


Slapback's name is a combination of the words "slap" and "back"; this is a reference as to how his duplication powers work: by slapping his back.

A "slapback" is also a kind of doubling echo with relatively long delay between repetitions of the sound, so that the individual echoes can be perceived.


  • Slapback's name was coined by Gwen and approved by Max, Phil, and a Slapback quarter when his quarters held a vote on the name.
    • Ben's proposed names for the alien were "Big Boy" and "Brawno".
  • Slapback replaces Grey Matter.[1]
  • Slapback's frog-like design resembles Bullfrag.


  1. Opening Intro for Season 3

Crew Statements

Duncan Rouleau

Original Aliens
CannonboltDiamondheadFour ArmsGrey MatterHeatblastOverflowStinkflyUpgradeWildvineXLR8
Introduced in Season 1 Introduced in Season 2 Introduced in Season 3 Introduced in Season 4
Gax RathShock Rock HumungousaurSlapback Eye GuyJetrayRipjawsWildmutt
Omni-Enhanced Aliens
CannonboltDiamondheadFour ArmsGrey MatterHeatblastOverflowStinkflyWildvineXLR8
Omni-Kix Aliens
Diamondhead • Heatblast • Humungousaur
Fusion Aliens Non-Canon
Amalgam BenGrey ArmsXLRArmBlastDiamondHeat Hot Dog AlienOmnitrix Glitch Fusion
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