Echo Echo

Echo Echo is the Omnitrix's DNA sample of a Sonorosian from the planet Sonorosia.

Appearance
Echo Echo is a small, white alien whose body is a living amplifier. He is actually living sonic waves contained in a suit made of silicon. One of his most noticeable features is a square appendage resembling an MP3 player behind his back with a port on it - decorated with a 10 symbol and what looks like cassette tapes on his lower legs. His voice originally sounded very high-pitched and tiny, but became slightly lower.

In Omniverse, Echo Echo's eyes are now more line-like and now has two black stripes on both of his ear plugs. His legs are also a little bit more stubby and the green circle on his hand is now bigger, covering most of his hand. He is also shorter and has a hexagonal shape on his stomach. The tapes on his legs are now gone. His voice sounds more robotic now, and it echoes more, as if he is speaking through a portable microphone.

Echo Echo wore the Omnitrix/Ultimatrix symbol on his chest in Alien Force and Ultimate Alien, and wears the Omnitrix symbol on his forehead in Omniverse.

Powers and Abilities
Echo Echo can scream at audible to ultrasonic frequencies capable of overloading machinery and stopping projectiles in mid-flight.

Echo Echo has the ability to duplicate himself, like Ditto, but different in that the clones aren't linked in any way, allowing entire groups to be knocked out without harming the rest and he can clone himself much faster than Ditto can.

By combining these two aspects, Echo Echo can create a "Wall of Sound", where Echo Echos can redirect projectiles back to their source by bouncing them off of strategically placed Echo Echos.

Echo Echo can create an "Echo Chamber", where Echo Echos attack from all directions and keep screaming until the target is knocked out or defeated.

Echo Echo can detect vibrations in the ground.

Using his sonic screams, Echo Echo can use echolocation, as seen in Alone Together.

Echo Echo can channel vibrations to enhance his screams, as seen in Undercover.

Echo Echo can transmit sound waves through speakers (such as phones), as seen in Grounded.

It has been shown that Echo Echo can use his sonic screams to create a forcefield.

Echo Echo is quite agile, shown from his ability to jump quite high.

Echo Echo seems to have more strength than his size suggests, as he can kick off the trunk door from Ben's car with one foot and Echo Echo is able to throw (about a meter) a Plumber Ship with nine Echo Echos in Prisoner Number 775 is Missing.

Weaknesses
Echo Echo has a fragile body which can be destroyed easily in battle, as shown when Ultimate Kevin destroyed several Echo Echos with Jetray's neuroshock blasts.

Ben

 * Echo Echo first appeared in Ben 10 Returns: Part 2:
 * Echo Echo defeated a robot Dragon and destroyed some Laser Lances.
 * In Kevin's Big Score:
 * Echo Echo defeated Argit.
 * In Darkstar Rising:
 * Echo Echo battled Darkstar.
 * In Alone Together:
 * Echo Echo battled Reinrassic III, accidentally got teleported to the planet Turrawuste, defeated a Dravek, and located a Teleporter Pod.
 * In Undercover:
 * Echo Echo defeated some DNAliens.
 * In Grounded:
 * Echo Echo got grounded and used his phone to defeat some DNAliens.
 * In Unearthed:
 * Echo Echo defeated some DNAliens.
 * In Fool's Gold:
 * Echo Echo got eaten by primal Decka, before being vomited out again.
 * In Vreedle, Vreedle:
 * Echo Echo scared the Vreedle Brothers away.
 * In Singlehanded:
 * Echo Echo defeated Sunder.
 * In Trade-Off:
 * Echo Echo got into Kevin's Car.
 * In The Secret of Chromastone:
 * Echo Echo took out Vilgax with a sonic scream.
 * In Above and Beyond:
 * Echo Echo defeated Helen.

Albedo

 * In Good Copy, Bad Copy:
 * Negative Echo Echo battled Brainstorm.

Ultimate Alien

 * In Fame:
 * Echo Echo was seen on TV.
 * In Duped:
 * Echo Echo created "3 Bens", and later merged back together.
 * In Map of Infinity:
 * Echo Echo went Ultimate.
 * In ...Nor Iron Bars a Cage:
 * Echo Echo destroyed some sonic collars.
 * In The Enemy of My Enemy:
 * Echo Echo contained a nuclear bomb to save Plumber's Academy until he went Ultimate to move it.
 * In Absolute Power: Part 2:
 * Several Echo Echos were killed by Ultimate Kevin and the remaining Echo Echo in Ben's car went Ultimate.
 * In Viktor: The Spoils:
 * Echo Echo destroyed some missiles before going Ultimate.
 * In Prisoner Number 775 is Missing:
 * Echo Echo threw a Plumber Ship into a lake.
 * In Greetings from Techadon:
 * Echo Echo battled a Techadon before going Ultimate.
 * In The Flame Keepers' Circle:
 * Echo Echo battled some Esoterica, and shattered Vilgax's tank.
 * In Double or Nothing:
 * Echo Echo battled Negative Rath before going Ultimate.
 * In The Perfect Girlfriend:
 * Echo Echo went Ultimate.
 * In Inspector 13:
 * Echo Echo played tennis with Julie.

Omniverse

 * In It Was Them:
 * Echo Echo destroyed one of Dr. Animo's Mutant Ants.
 * In Blukic And Driba Go To Mr. Smoothy's:
 * Echo Echo defeated Trumbipulor.
 * In Special Delivery:
 * Echo Echo defeated Thunderpig using a sonic scream, accidentally destroying Mr. Baumann's car in the process.
 * In Tummy Trouble:
 * Echo Echo tried to bring Brown Bag to safety, but brought him to the wrong tribe.
 * In Return to Forever:
 * Echo Echo tried to fight, but is reverted by the Forever Knights' DNA scanner.

Appearances
{{scroll box
 * content====Ben 10: Alien Force===

Ben

 * Ben 10 Returns: Part 2 (first appearance)
 * Kevin's Big Score
 * Darkstar Rising
 * Alone Together
 * Undercover
 * Grounded
 * Unearthed
 * Fool's Gold
 * Vreedle, Vreedle (selected alien was Humungousaur)
 * Singlehanded
 * Trade-Off (selected alien was Jetray)
 * The Secret of Chromastone
 * Above and Beyond

Albedo

 * Good Copy, Bad Copy

Ben 10: Ultimate Alien

 * Fame (video footage)
 * Duped (x2; first re-appearance since Alien Force)
 * Map of Infinity (goes ultimate)
 * ...Nor Iron Bars a Cage
 * The Enemy of My Enemy (goes ultimate)
 * Absolute Power: Part 2 (goes ultimate)
 * Viktor: The Spoils (accidental transformation; selected alien was Jetray) (Goes ultimate)
 * Prisoner Number 775 is Missing (selected alien was Humungousaur)
 * Greetings from Techadon (goes ultimate)
 * The Flame Keepers' Circle
 * Double or Nothing (goes ultimate)
 * The Perfect Girlfriend (goes ultimate)
 * Inspector 13

Ben 10: Omniverse

 * It Was Them (first re-appearance; accidental transformation, intended alien was Swampfire)
 * Blukic And Driba Go To Mr. Smoothy's
 * Special Delivery
 * Tummy Trouble
 * Return to Forever (cameo)

Comics

 * Double Trouble
 * Fashion Victim
 * Science Friction}}

Video Games
Echo Echo is a playable alien character on DS in Alien Force, in Vilgax Attacks and in The Rise of Hex.

Ben 10: Cosmic Destruction
Echo Echo has the ability to duplicate himself, making a maximum of three clones at a time. He can release sonic screams. Echo Echo's small size allows him to fit into small passages other aliens can't. He can also go ultimate.

Online Games

 * Ben 10 Alien Force: Fuel Duel
 * Ben 10 Alien Force/Ultimate Alien Game Creator
 * Ben 10 Omniverse: Game Creator

Trivia

 * According to Dwayne McDuffie, Echo Echo has headphones so he isn't hurt by his own sonic screams.
 * According to Derrick J. Wyatt:
 * Echo Echo's outer body is a containment suit and his inner body is made of living sound waves.
 * Echo Echo's object duplication and flight were glitch powers.
 * After Kevin's Big Score, Echo Echo's voice was changed to sound a bit higher pitched.
 * "Wall of Sound" is an unlockable combo move in the video game Vilgax Attacks.
 * "Wall of Sound" is a special move in Cosmic Destruction and can be upgraded to increase damage.
 * Echo Echo, in both normal and ultimate form, is one the few aliens Ben uses that actually names its moves with the cases being "Wall of Sound" and "Sonic Doom".
 * In FusionFall, there is a fusion of Echo Echo that when defeated releases Forever Ninja sets.