The most powerful alien would be ALIEN X!!!
Waybig.
Alien X
dooms day
Swampfire Ultimate SwampfireHumangasaur Ultimate HumangasaurBrainstorm Ultimate Way BigBig Chill GoopJetray U.Big ChillEcho EchoWay Big Ultimate Spider monkeyBloxx FourarmsRathLodestar Ultimate cannonboltFeedbackGravattack DiamondheadBall WeevilShocksquatch CannonboltBenwolf HeatblastBuzzshockAlien XNanomechNRGArmodrilloWater hazardTerraspinAmphibianCrashhopperKickin HawkAstrodactylJury RiggClockworkFasttrackEatleChamAlien/Overkill
Alien X somepeople argue that it may be Waybig
man the most powerful alien is actually alien X but since it gets stuck in arguments all the time its waybig
he wont unlock any aliens it different when its comes to Ben 10 and Ben 10 alien force
I can watch The Gauntlet in Ben 10 Alien Force.
Yuri Lowenthal is the voice of Ben Tennyson in Ben 10: Alien Force.
Ben 10 Alien Force has already been aired.
Of course Ben 10 alien force!
Ben Tennyson's voice actor is Yuri Lowenthal in Ben 10: Alien Force.