was very well received, with the AI garnering especial praise. Critics also lauded the graphics, atmosphere, sound design, music, and combat mechanics. Common points of criticism were a lack of enemy variety, a weak plot, and repetitive level design. The Xbox 360 version was also well received, but the PlayStation 3 version met with mixed reviews, with many critics unimpressed with the port's technical issues and graphical inferiority. The game was a commercial success, selling over three million units worldwide across all three systems. Gameplay F.E.A.R. is a first-person shooter in which the player's arsenal includes handguns (which the player can dual wield), an assault rifle, submachine gun, shotgun, sniper rifle, nail gun, repeating cannon, rocket launcher, and particle beam. Each weapon differs in terms of accuracy, range, rate of fire, damage, and weight. The latter characteristic is important, as the more powerful weapons (rocket launcher, cannon, and particle beam) tend to be more cumbersome and slow the player's movement and reaction speed. Only three different firearms can be carried at any one time. The player also has access to three different types of explosive - frag grenades, proximity grenades, and remote bombs. The player can carry five of each type, and can carry all three at once (allowing for up to 15 explosives), but only one type may be equipped at any one time. Additionally, when using the remote bombs, the player must holster their weapon. Compared to other shooters where melee combat is often a last resort, F.E.A.R.s melee system is a viable combat alternative. The butts of all firearms can be used in close combat; lighter weapons, although less powerful, allow the player to move around more quickly and increase the chances of a successful melee attack. Movement speed is maximized if a player holsters their weapon, which allows them to engage in hand-to-hand combat. As well as the basic melee attack, players can also perform a jumping kick and a sliding tackle, both of which, if landed correctly, instantly kill regular enemies. A prominent gameplay element in F.E.A.R. is "reflex time"; an ability which slows down the game world while still allowing the player to aim and react at normal speeds. This effect is used to simulate the player character's superhuman reflexes, and is represented by stylized visual effects, such as bullets in flight that cause air distortion or interact with the game's particle system. The