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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

Because he is made of living sound waves, Ultimate Echo Echo wears a tall blue containment suit[DJW 1] with black stripes, an overall rounded design, long arms and legs, and stumped feet. 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 and smaller mouth. His head is wide and angular, with 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

Like Echo Echo, Ultimate Echo Echo can release sonic screams and ultrasonic waves from the Sonic Disks on his body. These sound waves are powerful enough to throw Ultimate Kevin through several buildings at once,[1] damage a Petrosapien,[2] and paralyze an Opticoid.[3]

Ultimate Echo Echo can create force fields out of sonic waves that are strong enough to contain a blast from a nuclear fusion grenade.[4]

Ultimate Echo Echo can also use his sonic waves to push objects, seen when he pushed Gwen's mana force field across a pool of acid.[5]

Ultimate Echo Echo can fly by using sound waves.[6]

Because his appearance is a containment suit, Ultimate Echo Echo can survive in the vacuum of space. He can also produce airwaves, as he is capable of using his sonokinetic powers while in space as well.[4]

Ultimate Echo Echo possesses enhanced strength, enough to briefly help Kevin hold open a door in the temple on Mikd'lty.[5]

Ultimate Echo Echo is extremely resistant to low temperatures like those on Mykdl'dy.[5]

Ultimate Echo Echo is durable enough to withstand being thrown through the walls of Ben's house.[7]


Ultimate Echo Echo manipulates the power of sound, but he can also send out the Sonic Disks on his body to project powerful sonic blasts, which can knock someone out, destroy projectiles or even a military tank, with relative ease.

Ultimate Echo Echo can multiply the Sonic Disks once they have separated from his body, creating as many as needed.

Ultimate Echo Echo can use his Sonic Disks to use an exceedingly deadly move called Sonic Doom, where his discs surround the enemy and fire full sonic blasts. This move is powerful enough to subdue Ultimate Kevin,[1] who had managed to win almost every previous battle he had got into.

Ultimate Echo Echo's Sonic Disks can continue flying and attacking even after he transforms back to normal.[8]

Although he has never trained himself to do so, Ultimate Echo Echo can use his Sonic Disks to duplicate.[DJW 2][DJW 3][note 1]


Because Ultimate Echo Echo's containment suit is made of metal, he can be easily magnetized by a Biot-savartian.[1]

Like Echo Echo, Ultimate Echo Echo and his Sonic Disks are vulnerable to electricity, such those generated by a Gimlinopithecus.[3]

Ultimate Echo Echo can be suffocated if a large amount of matter enters his lungs.[7]

Ultimate Echo Echo's Sonic Disks are not very durable, as they can be destroyed by a Techadon robot's laser blasts[8] or an Anodite's mana attacks, the latter of which was demonstrated by his sentient counterpart.[2]

Ultimate Echo Echo can be knocked out of the sky by species with as much strength as a To'kustar, as also demonstrated by his sentient counterpart.[2]


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.

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 Απόλυτη Ηχώ Ηχώ From απόλυτος, 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, but only when he uses his sonic screams or is expressing his emotions.
  • Ultimate Echo Echo's voice is more robotic-sounding than Echo Echo's, making him sound similar to a speaker.
  • Kevin thinks that Ultimate Echo Echo's name should be "Ultimate Echo Ultimate Echo" instead.[5]
  • Ultimate Echo Echo was replaced by his devolved form for the Omniverse version of Game Creator.
  • 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.


  1. Originally, Ultimate Echo Echo did not have the ability to duplicate himself.[DM 1] This has been explained and/or fixed in Omniverse, as he was unable to duplicate using his Sonic Disks in Ultimate Alien because of a glitch with the Ultimatrix.[DJW 4]


Derrick J. Wyatt

Dwayne McDuffie

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 AlbedoArctiguanaBig ChillCannonboltEcho EchoGravattackHumungousaurRathSpidermonkeySwampfireWay BigWildmutt
Fusion Aliens Atomic-XBig ChuckCrashockerDiamond MatterFourmungousaurHeat JawsHumungoopsaurStink ArmsUprigg
Concept Fusion Aliens GravadactylXLRG
Other Aliens in Official Media AntigraviteslaBob the BlobCartoon Network AlienEon (Retconned)MoyoInvinciblePlantapocalypsePortalerRocksShadowmanSquidstrictorStretcheleo