Ben 10 and Aliens
Asmuth created the powerful device known as the Omnitrix. It is said that whoever wears it will have the ability to transform into 10 different aliens. Vilgax knows how powerful the device is and want it for himself. He sent countless robots to get it, but it was Ben that got it and use it against the robots. Vilgax was angry and started calling the best bounty hunters in the galaxy. You need to make sure that Vilgax can't get his hand on the omnitrix. In this game, you can't use the omnitrix yet, so you are going to rely on your guns to kill the aliens. Collect the green ball that they are dropping.