Use iron man's repulsers to destroy the chitauri and their transports. Later on you can use the unibeam. right arrow key to move right. space to shoot a repulcer beam. (use the mouse to direct it) when you have destroyed 20 chitauri, use the down arrow key to use the unibeam.
I gave credit to Marvel for the creation of the Avengers, Ironman, and the Chitauri and their transports. I also give credit to Scratch for the music.
