Although the player can perform melee attacks and disarm opponents, using weapons is generally discouraged as they slow Faith down and hinder her acrobatic abilities. For example, carrying a weapon that is heavier than a pistol prevents the player from being able to jump and grab ledges. Weapons have a finite magazine and must be discarded when they run out of ammunition. If Faith has preserved enough momentum, the player may use an ability called Reaction Time, which temporarily slows the gameplay down and allows the player to time their next move. Faith has a certain amount of health which automatically regenerates when she does not take damage for a brief period. If Faith falls off a significantly high position or her health is fully depleted, the player must start the level again from the latest checkpoint. In each level, the player may also find and collect three hidden yellow bags. These encourage the player to explore the game and unlock achievements.