Ben 10 – Alien Force is an action-adventure game for PlayStation 2, featuring a teenaged Ben Tennyson and his friends Gwen and Kevin as they search for his missing Grandpa Max. Players can utilize Ben's Omnitrix to transform into ten new alien forms, including Swampfire, Goop, and Jetray, to battle the Highbreed and prevent the extinction of humanity.
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.