Cannon Gun

Cannon Gun is a Heartless that appeared in Port Royal, unlike most aggressive Heartless attack tactics, it avoids you as far as possible. It's main attack includes creating a target emblem on the floor tracking you, and fire cannon bombs(as the name implies) while you're not cautious. Cannon Gun can be an annoying enemy, especially when paired with aggressive Heartless, since they're a good attack supporter. A god way of finishing them quick is to cast Magnet on attract them and finish them of with a strong spell. Alternately, forming into Wisdom Form and snipe from afar is also a good tactic, since Sora can move while attacking in this form.