Unison Rush

Unison Rush (ユニオンラッシュ) is a technique that appears in the international release of Kingdom Hearts Birth by Sleep and in Kingdom Hearts 3D: Dream Drop Distance. It allows the user to rush enemies together with teammates.

Mechanics
In Kingdom Hearts Birth by Sleep, Unison Rush is an Advanced Friendship Command that takes up three slots in the Command Deck, has a maximum level of 1, and a normal reload time of 50 seconds. The user rushes around the field, attacking enemies with the Keyblade. During Mirage Arena battles, every available player will join in for the attack. Damage is increased by pressing the buttons that are prompted on-screen.

In Kingdom Hearts 3D: Dream Drop Distance, Unison Rush is a Dual Attack that allows Sora and the Spirits in his party to rush around the field together, trailing a stream of colorful Spirit emblems. The player can direct the attack, which will damage any enemies in the way.

Kingdom Hearts Birth by Sleep

 * Terra can purchase Unison Rush at the Medal Shop for 3000 medals.
 * Ventus can purchase Unison Rush at the Medal Shop for 3000 medals.
 * Aqua can purchase Unison Rush at the Medal Shop for 3000 medals.

Kingdom Hearts 3D: Dream Drop Distance

 * Sora can use Unison Rush by dual linking with two Spirits.
 * Sora can use Unison Rush by dual linking with a and a  Spirit.
 * Sora can use Unison Rush by dual linking with a and a  Spirit.
 * Sora can use Unison Rush by dual linking with a and a  Spirit.