Pixel Prospector has created a 2D version of Call of Duty: Modern Warfare 2. The graphics aren't very advanced, but it's quite fun to play for a couple of minutes. You can download the game (only 16MB) for free over here.
Call of Duty 6 (2D Remake) is a nice 2D interpretation of the famous First Person Shooter Call of Duty: Modern Warfare 2. It has a simple yet great graphical style and offers lots of fast paced action in its 5 minute life span. In that short amount of time the game provides a wide range of variety: Beside the normal platform shooter passages you will also control a stationary machine gun, swirl around with a helicopter, take a race with a snow mobile and a motor boat… and control a remote controlled missile.