Ben, Gwen and Kevin are fighting a group of Forever Knights in a catacomb in Rome. Select your favorit Alien with ben 10 Bosses that you have to defeat to protect the planet . Ben tries to transform to help Gwen and Kevin fight the Forever Knights, but Jimmy Jones keeps trying to call Ben about something. Eventually, Ben gets separated from Gwen and Kevin, and begins trying to find his way out of the catacombs.
The Plumber ships approach the cosmic storm, but a powerful blast destroys them. Meanwhile, Ben, Gwen, and Kevin see Null Void creatures attacking France. The group goes to France to stop them. At a Forever Knight museum, Ben finds the Vreedle Brothers who are trying to steal an alien artifact. After defeating them, Sunder arrives and steals the artifact.
Alien Fight is the new game that introduces the new alien heroes: Water Hazard, Armodrillo, AmpFibian, fight with Ben-ten the hero and destroy ten Bosses with his power . Terraspin and NRG from the Ben Ultimate Alien television series, allowing players to tunnel or beat through evil alien enemies, unleash water blasts, emit radiation beams, shoot electricity bolts and fire, wind attacks, and more, with a unique experience system which lets them upgrade alien attributes and abilities. The game also provides all-new game enhancements such as Quick Switch, which allows players to switch alien forms faster than ever, and Quick Time Events which creates a cinematic experience that guides players through fierce boss battles and challenging puzzle elements. Players will control Ben and up to 16 alien heroes including Ultimate Big Chill