The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
From Warner Bros.:
Welcome to no mans land. Sensitive information has fallen into the wrong hands and its your job to get it back. Your friends are already making their way through enemy trenches, but something special has been arranged for you Power a customizable Mech, equipped with giant machine guns and grenade launcher, through the charred landscape of a re-imagined WW1 battlefield. Reanimated soldiers attack from the trenches and cathedral while bi-planes rain fire down upon you from the sky. Each of the three levels contains a final surprise attack, and you must learn to use your newly acquired jetpack in Level 2 if you are to defeat the final Zeppelin in Level 3. Earn achievements and challenge friends by sharing your score via the Game Center. Sucker Punch Mech Gunner is inspired by Zack Snyders SUCKER PUNCH, in theatres March 25.