Ben 10: Alien Avenger

Ben 10: Alien Avenger is a series made by Sonic879.

Summary
Ben gets an upgrade on his omnitrix to make him go into the aliens' ultimate forms. With Gwen, Kevin, Lucy Mann, and Rook on his side, he fights evil aliens, including Vilgax, and save the galaxies.

Heroes:

 * Ben Tennyson

Regular Aliens:

 * Heatblast
 * XLR8
 * Grey Matter
 * Blitzwolfer
 * Way Big
 * Swampfire
 * Big Chill
 * Alien X
 * Lodestar
 * Feedback
 * Ball Weevil
 * Pesky Dust
 * Humungousaur
 * Dragonfist
 * Anodite Girl
 * Kickin Hawk
 * Cannonbolt
 * Fasttrack
 * Water Hazzord
 * Upgrade
 * Terraspin
 * Chromostone
 * Diamondhead
 * Wildmutt
 * Four Arms
 * Echo Echo
 * Ditto
 * Atomix
 * Gravvattack
 * Rath
 * NRG
 * Eye Guy
 * Upchuck
 * Kickin Hawk
 * Stinkfly
 * Goop
 * Armodrillo
 * Shocksquatch
 * Jury Rigg
 * ChamAlien
 * Clockwork
 * Eatle
 * Brainstorm
 * Jumpy Jack
 * Flutterstorm
 * Bone Crasher
 * AmpFibian
 * Nanomech
 * TamarWarrior
 * Astrodactyl
 * Bullfrag
 * Bloxx
 * Crashhopper
 * Unitaur
 * Slapstrike

Ultimate Forms:

 * Ultimate Swampfire
 * Ultimate Fourarms
 * Ultimate Echo Echo
 * Ultimate Big Chill
 * Ultimate Humungousaur
 * Ultimate Spidermonkey
 * Ultimate Cannonbolt
 * Ultimate Wildmutt
 * Ultimate Heatblast
 * Ultimate Anodite Girl
 * Ultimate Gravvattack
 * Ultimate Rath
 * Ultimate Way Big