Reversal

Reversal is a technique that appears in Kingdom Hearts II and Kingdom Hearts Birth by Sleep. It allows the user to quickly slide behind an enemy just before it attacks.

Mechanics
In Kingdom Hearts II, Reversal is a Reaction Command that allows Roxas and Sora to slide behind specific enemies. When successfully executed against Dusks, the Dusk Roxas/Sora slid behind, as well as nearby Dusks and Creepers, is confused, allowing Roxas/Sora to attack. When against bosses, Reversal instead allows Roxas and Sora to evade projectiles.

In Kingdom Hearts Birth by Sleep, Reversal is a movement command exclusive to Ventus that has a maximum level of 1. By pressing just before a targeted enemy strikes, Ventus slides behind the enemy. Equipping Reversal allows Ventus to equip the reprisal command Reversal Slash.

Kingdom Hearts II

 * Roxas and Sora can use Reversal as a Reaction Command against Dusks.
 * Roxas can use Reversal as a Reaction Command against the Twilight Thorn.
 * Sora can use Reversal as a Reaction Command during his fight with Roxas and Roxas' Replica Data.
 * Sora can use Reversal as a Reaction Command against Xemnas (Final Form) and Xemnas's Replica Data.
 * Sora can use Reversal as a Reaction Command against Mushroom XIII No. 1.

Kingdom Hearts Birth by Sleep

 * Ventus learns Reversal after rescuing Ienzo from a horde of Unversed in Radiant Garden.
 * Ventus can purchase Reversal from the Moogle Shop for 600 munny after obtaining it elsewhere.

Kingdom Hearts Birth by Sleep Final Mix

 * Armor of Eraqus, when fighting Ventus, and No Heart have Reversal among their commands.