Template:Infobox Ben 10: Protector of Earth is a video game based on the American animated television series Ben 10. At the start of the game, a mosquito-like drone extracts much of the DNA from the Omnitrix, leaving only Heatblast and Fourarms on the watch. Ben finds that the stolen DNA is being used to power various robots in the form of Omnitrix Crystals, and in destroying these robots he regains some of his alien forms. Ben regains XLR8 after fighting the last one.
Ben later finds Vilgax's drones and the Forever Knights fighting. Enoch is building a mech using technology from Area 51 in an attempt to stop Vilgax; and though he is also trying to save the world, he isn't willing to let the Tennysons help.
In the beginning, Ben can stay an alien for a limited amount of time, but after defeating some bosses, Ben unlocks more powers for his aliens and even unlocks the master code, meaning he can stay alien indefinitely or switch between aliens without draining Omnitrix energy. Attack combos can be unlocked collecting Omnitrix points. Limited power boosts or invincibility can be gathered, as well as bonuses to make the Omnitrix recharge faster.
After each level, Plumber ranks are rewarded, depending on how fast the player beats that level. If the player gets an A rank, you get a character view, usually a boss or a villain. In the main boss levels, a God of War-styled button sequence allows players to execute a special attack at certain points.