ShootStorm is a universal app compatible with everything that can run iOS games, and makes full use of retina displays.
Developed by Andy Cowe, a game designer whose career started in 1997 at Acclaim working on Forsaken. Now operating independently as Moonjump.
App Store link: http://itunes.apple.com/gb/app/id392545121?mt=8
YouTube video: http://www.youtube.com/watch?v=4YUTq-xx9YA
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