Critical Boost

Critical Boost (クリティカルアップ), also translated as Critical Plus in Kingdom Hearts and Kingdom Hearts Re:coded, is an ability that appears in Kingdom Hearts, Kingdom Hearts Final Mix, Kingdom Hearts 358/2 Days, and Kingdom Hearts Re:coded. In Kingdom Hearts, equipping the ability increases the odds of dealing critical damage, with the effect boosted with more equipped, and in Kingdom Hearts 358/2 Days, it allows you to potentially deal critical hits with any kind of attack. In Kingdom Hearts Re:coded, it allows the user to deal more critical hits when their HP is reduced to 25%.

Kingdom Hearts

 * Sora learns Critical Plus at levels 21, 69, and 90 with the Dream Rod; levels 48, 78, and 90 with the Dream Sword; and levels 51, 69, and 90 with the Dream Shield.
 * Tarzan has Critical Plus as a default ability.
 * Aladdin has Critical Plus as a default ability.
 * Peter Pan has Critical Plus as a default ability.
 * Beast has Critical Plus as a default ability.

Kingdom Hearts Final Mix

 * Sora learns Critical Plus at levels 48 and 75 with the Dream Shield, levels 84 and 99 with the Dream Sword, and levels 96 and 100 with the Dream Rod; he also learns it after completing the Hercules Cup alone.
 * Tarzan has Critical Plus as a default ability.
 * Aladdin has Critical Plus as a default ability.
 * Peter Pan has Critical Plus as a default ability.
 * Beast has Critical Plus as a default ability.

Rings with Critical Boost

 * Critical Sun

Kingdom Hearts Re:coded

 * The Strike Armlet has Critical Plus as its equipment ability.