Methods and systems for deceiving other characters in a video game are disclosed. A video game may include a simulated environment in which player and computer controlled characters can monitor each other's positions using radar, e.g., an acoustic radar that detects noise (such as the firing of various weapons) associated with other characters. A character may fire a decoy bullet, which creates noise at the location of impact rather than the location of firing. A character may temporarily jam another character's radar so that the other character's radar does not display character locations. A first character may mimic an enemy character so that the first character appears as a friend to enemy characters on each enemy characters' radar. A special weapon may make all visible characters visually appear as enemies to a first character, thereby confusing the first character. Another special weapon may create a duplicate image of a character, thereby confusing others.