Critical Point

A Critical Point is a narrow space of time where Link has the opportunity to inflict major damage on a dungeon boss, usually with the aid of the Ordon Sword or the Master Sword; only seen in Twilight Princess. Critical Points occur in every temple boss battle except for that of Blizzeta in the Snowpeak Ruins. Usually after required steps have been completed, the temple boss will become tired, expose a weak spot, or faint, giving Link a much needed chance to strike with his sword. Critical points in boss battles are denoted by a change of music, shifitng from the common mysterious boss music to that of a more triumphant nature.

Critical Points in Twilight Princess:
 * Diababa: when the largest mutated Baba plant falls, exposing its vulnerable eye
 * Fyrus: when he falls after Link had forced him to trip using the Iron Boots as leverage
 * Morpheel: in its second form, when Link grapples onto the eye of the serpent with the Clawshot
 * Stallord: in its head form, when Link strikes the skull with the Spinner, after getting close enough on the adjacent wall
 * Armogohma: using the Dominion Rod, when the statue crashes the spider after nailing it from the ceiling with the Hero's Bow
 * Argorok: in its second form, whenever Link is able to grapple to the dragon's back using the Double Clawshot - to deal damage with the Master Sword.

Blizzeta in the Snowpeak Ruins does not give Link a chance at a critical point because in order to destroy the Twilit Ice Mass, only the Ball and Chain can be used, not the sword.