Final Fantasy XIII - Attack Chain
When you attack an enemy, the Chain Gauge will fill up slowly. The faster
your chain attacks, the faster the Gauge will fill up. When it is full, the
enemy will enter Stagger Status. When this happens, your attacks on this enemy
are much more powerful. The Chain Gauge will then slowly deplete. Once it is
empty again the Stagger Status ends. Every enemy has different conditions on
reaching the Stagger Status. Reaching Stagger Status on enemies results in a
higher score in the victory screen.