Thunderstorm

Thunderstorm (サンダーストーム) is a technique introduced in Kingdom Hearts Birth by Sleep. It allows the user to launch small salvos of electrical bursts at targets.

Mechanics
In Kingdom Hearts Birth by Sleep, Thunderstorm is a Shotlock that has a maximum level of 4 and max lock of 5. After the initial volley, the player can perform extra attacks by pressing at a specific time to fire additional blasts. The more accurate the player's button press, the more bursts will be fired.

Kingdom Hearts Birth by Sleep

 * Terra can obtain Thunderstorm from a chest in The Chateau.
 * Ventus can obtain Thunderstorm from a chest in the Mousehole.
 * Aqua can obtain Thunderstorm from a chest in the Foyer.