On the PSP, character movement is controlled using the analog stick and the D-pad being used to cycle through the available weapons. The Select button changes the camera mode. To target an enemy, the player holds the right trigger and can then cycle through targets using left and right on the D-pad. While in a car, the trigger buttons can be used for drive-by shootings. While in the midst of a mission, all enemies (that is, those directly relating to the mission) are indicated on the radar by red dots. In the game's menu, the player can choose to reverse the functions of the analog stick and D-Pad.