Focus Attack

Focus Attack is a move introduced in Street Fighter IV that every character in that game can use, which appears as Ryu's down special move in Super Smash Bros. for Nintendo 3DS / Wii U. Ryu charges up a punch for as long as the special attack button is held down, ink surrounding him. Ryu is also given super armor for the duration of the attack, though it will only protect against one hit. A fully charged Focus Attack will briefly stun opponents that are hit. The player can also cancel the attack by double-tapping the control stick. In addition, by tilting the control stick in the other direction while charging, the player can reverse the direction of the attack.