Call of Duty for N-Gage is a first foray of the hugely popular FPS series into the handheld world. It's not a straightforward port of an original 2003 game, as the set of levels and the engine used are different, accommodated for the restrictions of the mobile device. The basic idea is still the same: alone or with the help of your comrades shoot Nazis and complete objectives in a war-torn Europe during World War 2. As in the original campaign, here you can also partake in the action as U.S., British or a Russian soldiers during various missions.

The game follows the basic concepts of a 3D Shooter, just as the "bigger" Call of Duty: players can run, look up and down, use ironsights, array of WW2 weaponry and help of their squadmates to an extent. Plus, in Call of Duty fashion you sometimes take up a role of a tank commander. There are eleven maps in total, plus some that are used in multiplayer games that could support up to four players via Bluetooth connection.