Ben 10 and his alien companions are going against the US army in Ben 10 Big Battle! You start out as the wolf-like alien from the Ben 10 TV series but later you can change into other characters and each one of them has their own powers that will help you defeat the enemies. Attacking repeatedly will create combos, and hitting the enemies will fill up a meter under your health gauge. When the meter is filled, you can unleash a special attack that is different depending on the alien that you are playing as at the moment. Destroy crates for bonus weapons.