Killsight (キルサイト, Kirusaito?) is a gameplay mechanic in Final Fantasy Type-0. It is a fatally vulnerable state that allows any attack hitting the target to kill it instantly. The player can execute it by locking onto an enemy, by holding //.
When active, a red symbol appears on the opponent. Upon being struck by an attack at this moment, the enemy is killed immediately. The criteria for Killsight depend on each enemy, but it often activates when they are about to attack, or right after they have attacked. Killsight symbols will replace Breaksight symbols once the target's health is at a low enough threshold. Felling enemies this way also determines phantoma drops.
When the active leader lands an attack on an opponent without Killsight, it will not appear on an opponent immediately after, and may be skipped until the opponent repeats the animation initiating a Killsight. Like Breaksights, allies cannot trigger Killsights. If an ally lands an attack on an opponent with a Killsight window, it will disappear. There will be no critical hits on an opponent with Killsight. Landing an attack on an opponent with Killsight can replenish the Ability Gauge substantially. When damage is absorbed from an attack with an element that hits the opponent with Killsight, it will have no effect.
Killsight is also a negative status effect that places any target under its effect capable of being instantly killed in one hit, assuming its health is low enough, otherwise it will function as a Breaksight. Unlike the regular mechanic, allies can trigger these strikes, and locking on isn't required. It is inflicted with the Death spell, or immediately after a enemy's Rage status wears off for a short period of time. In preemptive strikes all enemies may start with a prolonged Killsight status, which allows the party to finish them off quickly. Party members can also be afflicted with the status. If the team has an ability with the capability of stunning enemies, a stunned enemy will become vulnerable enough to where a Killsight opening will show itself.
Killsights, like Breaksights, are most easily carried out by Cater, King and Trey, who can hit opponents from a distance. Eight, Queen and Jack have little delay between button presses and issuing their attacks, and can be used effectively as well.