Sonic Impact

Sonic Impact (ソニックスライド) is a technique in Kingdom Hearts Birth by Sleep. It allows the user to chain multiple Slide techniques by allowing him to perform an extra charging attack.

Mechanics
In Kingdom Hearts Birth by Sleep, Sonic Impact is a Movement command that can be used exclusively by Terra. It has a maximum level of 4 and fills the Command Gauge by 20% each time it hits an enemy.

Kingdom Hearts Birth by Sleep

 * Terra obtains Sonic Impact after defeating the horde of Unversed in the Olympus Coliseum.

Other appearances

 * Terra-Xehanort can also use Sonic Impact, as he is an extension of Terra, but albeit with darkness.
 * No Heart can also use a variation of Sonic Impact in his battle.