Ben10 – Alien Force is an action-adventure game for PlayStation Portable featuring a 15-year-old Ben Tennyson. With his Omnitrix, Ben teams up with Gwen and Kevin to locate his missing Grandpa Max. Players can assume control of ten new alien forms, including Swampfire, Goop, and Jetray, to combat the Highbreed and prevent human extinction while saving Earth.
Ben Tennyson is now 15 and becoming a leader wearing his powerful Omnitrix again. Grandpa Max is missing and Ben needs the help of Gwen and Kevin to find him. Ben has 10 new aliens -- including Swampfire, Goop and Jetray -- to fight against Highbreed and stop him from making humans extinct and destroying Earth.