As the game progresses, Ben must battle his way through increasingly difficult levels until he reaches the final confrontation with Vilgax himself. Along the way, Ben will find power-ups and upgrades that will help him on his mission. During each level, Ben must use his alien transformations to fight his way through enemy forces and eventually reach the end of the level. The game has 18 levels, each with a unique boss battle against one of Vilgax’s minions. With the help of his cousin Gwen and Grandpa Max, Ben sets out on a mission to stop Vilgax from using his vast array of alien technologies to take over the world. The story begins with Ben finding an alien pod and discovering he has a powerful new set of alien transformations called the Omnitrix. The storyline in Ben 10 Alien Force Vilgax Attack follows Ben Tennyson as he attempts to save the universe from the villainous Vilgax and his evil minions.