Mega Flare

Mega Flare (メガフレア) is a technique in Kingdom Hearts: Chain of Memories, Kingdom Hearts Birth by Sleep, and Kingdom Hearts Re:coded. Once used, the caster fires a fireball that, upon impact of an enemy, creates a blinding, screen-distorting explosion that heavily damages all enemies on screen.

In all versions of Kingdom Hearts Birth by Sleep besides the original Japanese version, Mega Flare's power is reduced. This is due to the Japanese version's Mega Flare being considered to be too powerful.

Mechanics
In Kingdom Hearts: Chain of Memories, Mega Flare is a Sleight.

In Kingdom Hearts Re:coded, Mega Flare is a Finish Command.

In Kingdom Hearts Birth by Sleep, Mega Flare is an Ultimate Magic Command that takes up two slots in the Command Deck, has a maximum level of 6, a normal reload time of 50 seconds, and fills the Command Gauge by 55%.

Kingdom Hearts Birth by Sleep

 * Terra, Ventus, and Aqua can create Mega Flare through Command Melding.

Kingdom Hearts Birth by Sleep
Mega Flare is an Ultimate-class Magic Command that can be melded through one recipe, listed in the Giga Magic Recipe.
 * The recipe can be melded by Terra, Ventus, Aqua, and is a recipe.
 * Fission Firaga (LV4) + Crawling Fire (LV4)

Origin
Mega Flare is a recurring attack in the Final Fantasy series. It often appears as the Summon creature Bahamut's signature attack. It is depicted as an upgraded form of the Flare spell, and deals massive non-elemental damage to all enemies.