At first glance, Avengers Initiative appears to be a visually impressive game. Both the environments and the characters appear to be highly detailed complex models that should take more processing power than the iPad has on hand.
Once the gameplay starts though, it is easy to see how the developers could have cut a few corners to make the game less processor-intensive than it could be. For one, the highly detailed surroundings are confined to a small area and the player is allowed only a narrow viewing area. As a result, the whole world doesn't need to be rendered, and given the fairly-fixed position of the camera, most of the world doesn't even have to modeled. Heck, I wouldn't be surprised if the detailed world around the Hulk was essentially a texture map applied to the inside of a dome with the viewer at just the right angle to sell the depth of the world. Whatever trickery may or may not be going on behind the scenes, Avengers Initiative looks impressive and pulls off the look of a console-based game.
Avenger Initiative's audio, on the other hand, feels a little flat. While the voices portraying characters like Hulk, Nick Fury and some of the enemies sound like the part, the acting often feels stiff and forced. As for the game's background music, it gets the job done, but is uninspiring. In my opinion, you should turn the subtitles on and turn the volume down.