Terra's scenario

The only time Vanitas ever faces Terra in combat is during the final battle with Master Xehanort, during which Vanitas assists Master Xehanort in a battle against the young Keyblade wielder. During this battle, Terra has access to D-Links, Shotlocks, and Command Styles. While clearing this boss fight without the use of these special powers and abilities is quite possible, it is recommended that the player instead make full use of them.

It is very important that the player immediately go on the offensive at the start of the battle, as he now has two of Kingdom Hearts Birth by Sleep's strongest bosses facing him at one time, the only instance in Terra's scenario where this is done. However, though both Master Xehanort and Vanitas are present, the battle will end once Vanitas is defeated. Because of this, the player should immediately target Vanitas, the weaker of the two bosses, hammering him with physical attacks and magic. Vanitas will not attack often and will mainly attempt to dodge the player's attacks, but certain abilities such as Chaos Rave will allow the player to stay on him. When Vanitas vanishes, Slide out of the way; if you do not, you will fall victim to an downward strike from Vanitas with his Keyblade. When Vanitas sinks into the ground, only visible by a moving pool of darkness, immediately chain Slides together. Otherwise, Terra will be bombarded with fireballs as the boss re-emerges. Vanitas may leap into the air bombarding the player with dark lightning, or he even may shoot a single, large fireball that later splits into three homing ones. Slide can be used to dodge these attacks, as well.

Once enough HP has been depleted from Vanitas, the battle will automatically end, regardless of how much of it currently remains. So long as the player makes full use of their Shotlocks, Command Styles, and D-Links, healing with Curega or Sliding when necessary, this battle should not be that hard to complete. However, the player should remember that Master Xehanort is also present during the battle, and he may strike Terra with his Keyblade or shoot a long-range, dark Blizzard spell in his direction. Master Xehanort may also combine the two attacks, assaulting Terra with a fast-paced physical combo and ending it with a Blizzard spell that can freeze Terra, leaving him open to both Vanitas and Master Xehanort's attacks. So long as the strategy used against Vanitas is carried out throughout the battle as the player attempts...