Y-Combo

The Y-Combo is a sort of 'ablility' used in Kingdom Hearts 358/2 Days. It allows the player to switch to an alternate combo during a combo.

Mechanics
Sometime during a combo, the player may be prompted to press the Y button. This will make the player switch to a quicker, more powerful combo, dealing more damage to the enemy. Each weapon has a different Y-Combo, some with none at all.