The sword arm can be controlled by using a joystick, the numeric keypad, or a mouse. For example, with the keyboard, to perform a slashing attack with the default key combination, a player would press the '4' and '6' keys on the numeric keypad in succession. This will move the weapon from extreme left to right. The '8'-'2' combination will likewise perform a top-down striking motion. Blocking is accomplished similarly, not through a separate key or state like in all other games of this genre, but instead through the simple physical principle of positioning the weapon so that it intercepts, and blocks, the enemy's weapon. Shields operate like swords in this respect, though it is generally not possible to directly control the off-hand.