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Ben 10 Wiki
34497a3fe0ef52949a1ba8e99894ed69 This article belongs to the Classic Continuity

I'll try to make this as quick and painless as I can. Sonic... DOOM!

– Ultimate Echo Echo, moments before defeating Ultimate Kevin.[1]

Ultimate Echo Echo is the Ultimatrix's artificially evolved DNA sample of a Sonorosian.


Ben as Ultimate Echo Echo[]

Ultimate Echo Echo has a tall blue body with black stripes, an overall rounded design, long arms and legs, and stumped feet. He is not a robot or containment suit, despite his body now looking more metallic.[note 1] Unlike his devolved counterpart, Ultimate Echo Echo has fifteen blue, removable speaker-like components attached to his body and a marking on his back resembling a cassette tape. Ultimate Echo Echo wears the evolved Ultimatrix symbol on his chest.

Albedo as Negative Ultimate Echo Echo[]

Negative Ultimate Echo Echo has red eyes and red cables that attach from his back to his hands. His head is wide and angular, with a smaller mouth; a silvery forehead; and black "ears" on the sides. His Sonic Disks are red instead of blue and they look like his head, not having a sunken look to them. Two of the spikes on the Ultimatrix symbol, which look more tubular, connect to the discs on his chest, and a third one seems to crawl up the side of his neck. He also has black stripes on his stomach and legs.

Powers and Abilities[]

Ultimate Echo Echo can release sonic waves from the Sonic Disks on his body. These sound waves are powerful enough to shatter steel,[merch 1] throw Ultimate Kevin through several buildings at once,[1] heavily damage a Petrosapien,[3] paralyze an Opticoid,[4] and temporarily contain a blast from a Nuclear Fusion Grenade.[5]

Ultimate Echo Echo can create force fields out of sonic waves that are strong enough to block Petrosapien crystal shards.[1] Ultimate Echo Echo can also release sonic screams like his devolved form, as demonstrated by his sentient counterpart.[4]

Ultimate Echo Echo can fly and levitate by using sound waves.[6][7][merch 1]

Ultimate Echo Echo possesses enhanced strength, enough to briefly help Kevin hold open a door in the temple on Mikd'lty.[6]

Ultimate Echo Echo is durable enough to withstand being thrown through the walls of Ben's house[8] and getting smacked by a To'kustar, as demonstrated by his sentient counterpart.[3]

Ultimate Echo Echo can survive and use his powers in the vacuum of space.[5]

Ultimate Echo Echo is immune to low temperatures, like those on Mikd'lty.[6]


Ultimate Echo Echo can send out the Sonic Disks on his body to project powerful sonic blasts, which can easily knock out his opponents, destroy projectiles or even a military tank.[1] Ultimate Echo Echo can also multiply the Sonic Disks once they have separated from his body, creating as many as needed.[1]

Ultimate Echo Echo can use his Sonic Disks to use an exceedingly deadly move called Sonic Doom, where his disks surround the enemy and fire full sonic blasts. This move was powerful enough to subdue Ultimate Kevin.[1]

Ultimate Echo Echo's Sonic Disks can continue flying and attacking even after he transforms back to normal.[9]


Like his devolved form, Ultimate Echo Echo is vulnerable to electricity, such as that generated by a Gimlinopithecus.[4] Ultimate Echo Echo also will feel pain if his Sonic Disks are damaged, demonstrated when they were electrocuted.[4]

Ultimate Echo Echo's skin is somewhat metallic, which means he can be easily magnetized by a Biot-savartian.[1]

Ultimate Echo Echo can be suffocated if a large amount of matter enters his lungs.[8]

Like his devolved form, Ultimate Echo Echo can also unintentionally hurt his teammates' ears with his sonic vibrations, as demonstrated with his sentient counterpart.[3]

Unlike his devolved form, Ultimate Echo Echo does not have the ability to duplicate himself.[note 2]


Ultimate Alien[]



Season 2
Season 3
Season 3

Season 4
Season 5

Cartoon Network Action Packs
Ultimate Alien
Graphic Novels
Short Books
Ultimate Alien

Video Games[]

Ben 10 Ultimate Alien: Cosmic Destruction[]

Ultimate Echo Echo is a playable alien in all versions of the video game but only on a small section in the Amazon base to defeat an army of Robotic Extermination Devices. Strangely, he has five fingers instead of four.

Ultimate Echo Echo can launch his Sonic Disks at enemies, send 2 disks out to make a shockwave on far away enemies, and spin sonic disks around him, damaging any nearby enemies in a small radius, then making a shockwave, damaging all nearby enemies.

He can dash forward, punching through enemies. He moves around by floating above the ground.

Ben 10: Galactic Racing[]

Ultimate Echo Echo is a playable racer in the game. He fires sonic discs at his opponents.

Online Games[]

Ult Echo Echo Exonaut

Ultimate Echo Echo Exosuit in Project Exonaut

Project Exonaut[]

Ultimate Echo Echo is a playable Exosuit of the Banzai Squadron on Project Exonaut. His Weapon Mod, similar to Phantom, increases the firing rate of the Marksman. Ultimate Echo Echo is available for purchase at level 20 for 1000 coins.


His special moves are Sonic Disc and Sound Barrier and his super move is Echo Chamber.

Naming and Translations[]

Language Name Origin
Arabic اكو اكو الأقصي Waco Ako Aqsa
Bulgarian Ултра Ехо Ехо From ултра/ultra, ultimate, and ехо, echo
Chinese 终极小波波 From 终极 (Zhōng Jí), ultimate, (Xiǎo), little, and 波波(Bō Bō), wave
Dutch Ultieme Echo Echo From ultieme, ultimate, and the original name
French Ultimate Echo Echo From the original English name
German Ultimativer Echo Echo From ultimativer, ultimate, and the original name
Greek Υπέρτατη Ηχώ Ηχώ From υπέρατος, ultimate, and ηχώ ηχώ, echo echo
Italian Ultra Eco Eco From ultra, ultimate, and eco eco, echo echo
Norwegian Ultimat Ekko Ekko From ultimat, ultimate, and ekko ekko, echo echo
Polish Ostateczny Echo Echo From ostateczny, ultimate, and the original name
Portuguese (Br) Eco Eco Supremo From eco, echo, and supremo, supreme, which is synonymous to ultimate
Romanian Ecou Ecou X From ecou ecou, echo echo and X
Russian Ульти-Эхо-Эхо From the original English name
Spanish (HA) Eco Eco Supremo From eco eco, echo echo, and supremo, ultimate
Spanish (Spain) Ultra Eco/Ultimate Eco From ultra and eco, echo
From ultimate and eco, echo
Tagalog Ultimeyt Eko Eko From ultimeyt, ultimate and eko eko, echo echo
Turkish Ultimat Eko Eko From ultimat eko eko, ultimate echo echo


  • Ultimate Echo Echo's mouth does not move when he speaks except when he uses his sonic screams or expresses his emotions.
    • Negative Ultimate Echo Echo never spoke in Omniverse, becoming the only Ultimate form used in that series to not have any dialogue.
  • Whenever Echo Echo goes Ultimate, any Echo Echo clones active at the time will transform into Sonic Disks.[5] However, if all Echo Echo clones go Ultimate at the same time, they will instead merge into Ultimate Echo Echo.[9]
  • Kevin thinks Ultimate Echo Echo's name should be "Ultimate Echo Ultimate Echo" instead.[6]
  • Ultimate Echo Echo was the Alien of the Month in November 2011.
    • However, in Australia, Ultimate Kevin took Ultimate Echo Echo's place during that time.
  • In FusionFall, there is a helmet based on Ultimate Echo Echo that can be bought inside Ship.
  • Ultimate Echo Echo was replaced by his devolved form for the Omniverse version of Game Creator.
  • Ultimate Echo Echo first appeared in Fashion Victim, a non-canon comic released concurrently to Ultimate Alien, before his on-screen debut in Map of Infinity.
  • Ultimate Echo Echo's Ultimate Alien design was created by Steven Choi, a process which he found to be difficult.[SC 1]
    • Ultimate Echo Echo's Omniverse design was created by Steven alongside Chap Yaep and Dou Hong.[DJW 10]


  1. A fan once asked Dwayne McDuffie if Echo Echo was either a robot or some kind of living containment suit, and then shared a theory that Echo Echo's being is actually living sound waves for a containment suit to hold; Dwayne responded on September 22, 2008 by saying "Echo [Echo] is a member of a race that just looks like that".[DM 1] Later, Derrick J. Wyatt would claim multiple times that Echo Echo was in fact a containment suit housing living sound waves while answering fan questions,[DJW 1][DJW 2] while specifying that he did not come up with the concept,[DJW 3] and got it from Dwayne McDuffie.[DJW 4] Due to the contradictions between Dwayne and Derrick, Echo Echo is no longer considered by the wiki to have a containment suit. Following his logic with Echo Echo, Derrick claimed that Ultimate Echo Echo was also living sound within a containment suit.[DJW 5][2]
  2. Various statements made by the crew offer contradictory accounts whether Ultimate Echo Echo retains his devolved counterpart's self-duplication abilities.
    • During Ultimate Alien's run, a bio for Ultimate Echo Echo featured on Cartoon Network's website stated that Ultimate Echo Echo could self-duplicate,[CN 1] with him doing so in a non-canon comic. However, Dwayne McDuffie stated that Ultimate Echo Echo did not possess this ability.[DM 2]
    • Derrick J. Wyatt thought that Ultimate Echo Echo's Sonic Disks could detach from him and then a body would drop down from the disk so he could duplicate by transforming rather than copying. This is why he redesigned Ultimate Echo Echo's disks in Omniverse to resemble his head, only to later find out he could not duplicate.[DJW 6]
      • In Derrick's opinion, Ultimate Echo Echo can duplicate in Omniverse[DJW 7] despite not displaying the power on-screen.[DJW 8] He also explained his inability to do so in Ultimate Alien as being due to a glitch with the Ultimatrix.[DJW 9]



Crew Statements[]

Derrick J. Wyatt[]

Dwayne McDuffie[]

Steven Choi[]

Cartoon Network[]

See Also[]

Introduced in Ben 10 ArctiguanaBlitzwolferBuzzshockCannonboltDiamondheadDittoEvil Way Big (Destroy All Aliens)Eye 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
Competition Winners Alien Maker Contest WinnerMoyoInvinciblePortalerShadowmanStretcheleo
MAD ChromastoneFour ArmsHumungousaurJetrayNRGSwampfire
Total Access AntigraviteslaBob the BlobPlantapocalypse
Ben 10: Science Hero CaetSektoid TransformationShafarnianSteeler
Tim 10 BloxxFour ArmsHeatblastSkateasaurusUpchuckXLR8
Other Cartoon Network AlienEon (retconned)Evil Way Big (Cosmic Destruction)Fuel Run AlienGrendene AlienK-Zone AlienRobot AlienRocksSquidstrictor