Agent Under Fire features over fifteen different types of firearms, as well as other weapons. Each firearm is based on a real firearm, but is given a pseudonym, the same manner as the weapons in GoldenEye 007, and The World is Not Enough. Most of the gadgets are concealed in a mobile phone, including a decryptor, grapple, laser, and remote transmitter. Bond is also provided with a card that disrupts electronic signals, as well as a jetpack. During the course of the game, players may encounter opportunities to utilize the level's environment or their gadgets to dispatch enemies, clear obstacles, or open up alternative pathways; doing so awards the player a "Bond Moment" which contributes to the player's end-of-level score.
The multiplayer mode in Agent Under Fire features up to four players, with several unique arenas to host multiplayer battles in. The multiplayer games can also be played with one player against an AI player.