This is one of the best ben 10 packman game for free to play. You should eat all these little green dots to energize ben 10. And stay away from nasty ghosts.
It's pretty easy, Just use keyboard movement keys to move around.
Ben 10 Alien Hunter
Ben 10 VS Alien Force
Ben Ten the Alien Device
Ben 10 Alien Swarm Smash
Ben Ten Aliens Truck
Ben 10 Humungousaur Giant Force
Ben 10 Alien Force Omnimatch
Ben 10 Critical Impact
Ben 10 Danger from Dimension 12
Ben 10 Vilgax Crash Online Fight Game
Ben 10 Action Packs