Dark Cannon

Dark Cannon (ダークキャノン) is Vanitas's Shotlock in Kingdom Hearts Birth by Sleep. The Vanitas Remnant can also use this Shotlock, and when Ventus uses Vanitas's D-Link, his Shotlock becomes a light version of Dark Cannon named "Dark Link".

Kingdom Hearts II
Sora and Riku can use a different version of Dark Cannon while performing their Eternal Session Limit. Dark Cannon causes the two Keyblade wielders to fire several bluish-white fireballs at their opponent.