Rage Mode is a gameplay mechanic in Final Fantasy Type-0. Almost all enemies are capable of entering Rage Mode under certain circumstances, such as HP being reduced to below 20% of maximum. It consists of one or more of Aura, Haste and Endure. Enemies can still be defeated while they are in this state, but they are very powerful.
In all difficulties besides Finis, when enemies come out of Rage status, they will have Killsight for six seconds. In Finis difficulty, enemies will always be in Rage Mode apart from purely mechanical beings.
Rage (often called fury or frenzy) is a feeling of intense, violent, or growing anger. It is associated with the fight-or-flight response and often activated in response to an external cue, such as an event that impacts negatively on the person.