i would say ult echo echo
These are only aliens that has an evolution(or ultimate form): 1.Big Chill - Ultimate Big Chill 2.Echo Echo - Ultimate Echo Echo 3.Humungousaur - Ultimate Humungousaur 4.Cannonbolt - Ultimate Cannonbolt 5.Spidermonkey - Ultimate Spidermonkey 6.Swampfire - Ultimate Swampfire That's all ......I !!
Ampfibian,Armodrillo,Big Chill,Echo Echo,Humungousaur,NRG,Spidermonkey,Swampfire,Terraspin,Waterhazard,What_are_the_ben_10_ultimate_alien_cosmic_destruction_aliensBig Chill,Ultimate Echo Echo,Ultimate Humungousaur,Ultimate Spidermonkey,Ultimate Swampfire; Way big but only in the last leval
Ulimate echo echo was just used in the episode Map of Infinty
Ampfibian,Armodrillo,Big Chill,Echo Echo,Humungousaur,NRG,Spidermonkey,Swampfire,Terraspin,Waterhazard,Ultimate Big Chill,Ultimate Echo Echo,Ultimate Humungousaur,Ultimate Spidermonkey,Ultimate Swampfire; Way big but only in the last level you can also play as fourarms only in the ps3 version and rath only in the xbox 360
Amphibian Water Hazard Armadrillo Terraspin NRG (energy) Swamp Fire Ultimate Swamp Fire Spider Monkey Ultimate Spider Monkey Echo Echo Ultimate Echo Echo Big Chill Ultimate Big Chill Rath ( X box 360 only ) Fourarms(playstation 3 only)
Swampfire Echo Echo Humungousaur Jetray Goop Spidermonkey Brainstorm Big Chill Chromastone Alien X (Will be shown later in the show) Upchuck Cannonbolt Nanomech Lodestar Rath Way Big Four Arms Water Hazard Armodrillo AmpFibian NRG Terraspin Ultimate Swampfire Ultimate Humungousaur Ultimate Echo Echo Ultimate Spidermonkey Ultimate Big Chill Ultimate Cannonbolt
It's coming out in November or December of 2010, they're selling them in the UK.
He has not Appered yet , but you can go to cartoonnetwork.com ,click on Ben 10 Ultimate Alien , and listen to his voice.
Well, if you mean the Ultimate Aliens, they are as listed. Ultimate Humongousaur Ultimate Swampfire Ultimate Spidermonkey Ultimate Echo Echo Ultimate Big Chill Ultimate Cannonbolt Ampfibian Armodrillo Water Hazard Terraspin NRG Nanomech
abdul yasin abdul yasin abdul yasin abdul yasin
1.Ultimate Echo Echo 2.Ultimate Cannonbolt 3.Ultimate Humangousaur 4.Ultimate Spidermonkey 5.Ultimate Swampfire 6.Ultimate Big Chill 7.NRG 8.Armodrillo 9.Nanomech 10.Waterhazerd 11.Terraspin 12.Ampbian those are in ben 10 ultimate alien