Marvel Avengers: Battle for Earth is a game developed by Ubisoft for the Wii U. The game features extensive motion controls and "competitive gameplay". The story focuses on Captain America, Iron Man, Thor and Hulk as they fight off the genetically altered Skrull alien race. It is based on the Marvel Comics storyline Secret Invasion, in which super-heroes are replaced by the shape-shifting Skrulls. The game isn't a tie-in with the film The Avengers, and features over 20 characters from the Marvel Universe.