Holy Burst

Holy Burst (ホーリーバースト), dubbed "Burst of Faith" in Kingdom Hearts Birth by Sleep, is a technique that appears in Kingdom Hearts Re:Chain of Memories and Kingdom Hearts Birth by Sleep. It allows the user to execute a spinning attack together with Mickey Mouse, firing orbs or streams of light.

Mechanics
In Kingdom Hearts Re:Chain Of Memories, Holy Burst is a Friend Sleight. Riku and Mickey stand back-to-back with the Soul Eater and Kingdom Key D extended and spin, with Mickey firing orbs of lights from the tip of his Keyblade. They can freely move around the field while using Holy Burst, but in the HD 1.5 ReMIX re-release, the duration of the technique has been shortened to only 1 second. If Riku is in Dark Mode, a similiar variant called Inverse Burst is activated instead.

In Kingdom Hearts Birth By Sleep, Burst of Faith is an Reaction Command that can only be used in fights where King Mickey assists Ventus or Aqua. Instead of orbs, the technique creates a shower of lights that is activated by pressing the ( in the Japanese version) button when prompted. The finishing move sends out a burst of light.

Kingdom Hearts Re: Chain of Memories

 * Riku can use Holy Burst once he gains access to the Mickey friend card.
 * The card combination is:

Kingdom Hearts Birth By Sleep

 * Aqua can use Burst of Faith as a Reaction Command with Mickey while defending Kairi from Unversed or fighting Ventus-Vanitas.
 * Ventus can use Burst of Faith as a Reaction Command with Mickey while fighting Vanitas in the Badlands.