Ubisoft Quebec based the game on the film and the Marvel "Avengers" comic book. In "Marvel Avengers Battle for Earth", twenty separate characters battle a shape-shifting band of scoundrels called the Skrull who infiltrate the Avengers by replacing them with doppelganger look-alikes who have the same powers as the originals. The remaining Avengers have to battle the impersonators to keep an alien race from invading Earth through a portal hovering over New York.
The characters make the game. Most of us are familiar with the most popular. Black Widow, Captain America, the Hulk, the Human Torch and Iron Man are part of our culture. All of the twenty have appeared in a comic book. Each character has three unique super power moves which can be chained together for combinations. As the player controls his or her character, he'll be rewarded with damage-enhancing super attack, frenzies, velocity boosts, and breakers.
Gameplay features four different modes; Campaign, Arcade, Versus and Challenges. The player can ignore the Versus mode if he wants but he must complete the rest. Combat within each mode except Versus gives the player four characters. The player can control two and the game controls two. The player can switch back and forth between the characters he controls at will.
Campaign mode has five levels and eight stages within each level. You have to complete the first four stages within a level before you can do the last four. Other than that, they can be played in any order. The opponents are selected by the game and form a loose storyline.
Versus Mode - is PVP or player versus player and takes place on one of five stages.
Arcade Mode - you play in teams, any two unlocked characters for a ten battle progression.
Challenges mode should be done first. It has a training section to acquaint the player with the moves available with each character and the controls used to move and strike with the character. Once the player knows what he's doing, he's ready for the Trials section. Twenty scenarios make up the Trials with specific handicaps and parameters and each must be completed to succeed in the game. There are eight more scenarios available through the player's Uplay account.
Gameplay on the Wii U uses the gamepad or Wiimote and Nunchuk controllers. Using the gamepad, requires players to press buttons then trace patterns on the screen. The Wii remote inputs commands through the pad alone. The Wii gamepad takes advantage of the natural movement of pointing to control the game. The controller is held in one hand (the Nunchuck is held in the other hand and adds additional commands but doesn't have a pointing device) and pointed at the screen. Movements of the controller are tracked by an image sensor which can track movements along three axes.
Uplay came into being in 2009 with the release of the game, "Assassin's Creed II". It's a network which allows players to connect with other players and gain rewards through achievements in the game. Uplay targets four specific actions within the game to earn the player between five and forty units or reward points. The units can be used in any Uplay enabled game.