This game is terrible. You are forced to plod through way too many levels shooting at far too many aliens. I have no idea what the plot is about because I simply spammed (A) throughout. There is no gameplay- no game at all. In lieu of a game they just throw a ton of aliens at you and you're forced to sit there, fingers growing tired, hoping to hit that one alien sniping from so far away you can hardly see it. I hope you're prepared to deal with dozens of aliens shooting at you from every angle.
My heart goes out to the unlucky coders who spent years in college with dreams of making the next big game only to slave away on this festering, God awful game.
Seriously, this is a waste of a bad movie license. If you're going for the achievements, you'll grow tired of the repetive gameplay and long for something else.
By far, the best moment of this game was dropping it the mailbox.
I liked the movies, but this game is terrible. Your aim isn't correct and there are a lot of things that could have been added to the game. The antigravity attachment only works a few times. When you get to the giant scorpion that's Nathera there are no weak spots. Since obviously there is always a weak spot on aliens except for her. Which makes it nearly impossible to beat her.