Critical Boost (クリティカルアップ, Kuritikaru Appu, lit. "Critical Up"), also dubbed as Critical Plus, is an ability that appears in Kingdom Hearts, Kingdom Hearts 358/2 Days, and Kingdom Hearts Re:coded. It boosts the user's ability to deal critical hits to enemies.

Mechanics

In Kingdom Hearts, Critical Plus is a combat ability that boosts the user's critical hit rate by a factor of 1+n, where n represents the number of Critical Plus abilities equipped. It costs 3 AP to equip, 2 AP in Kingdom Hearts Final Mix.

In Kingdom Hearts 358/2 Days, Critical Boost is an equipment ability that allows the user to potentially deal critical hits with any kind of attack.

In Kingdom Hearts Re:coded, Critical Plus is an accessory ability that allows the user to deal more critical hits when their HP is reduced to 25%. Sora's critical hit chance is doubled in this state.

Learning Critical Boost

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.

Kingdom Hearts 358/2 Days

Weapons with Critical Boost

Duel Gear																3
Duel Gear+		3										3	3	3		3
Duel Gear++		3											3	3		3
Phantom Gear											3					3
Phantom Gear+							3				3					3
Phantom Gear++							3									3
Nimble Gear										3						3
Nimble Gear+										3						3
Ominous Gear							3			3						3
Ominous Gear+			3				3			3						3
Prestige Gear																3
Prestige Gear+																3
Crisis Gear		3									3					3
Crisis Gear+					3						3					3
Omega Gear					3							3				3
Omega Gear+												3				3
Hazard Gear																3
Hazard Gear+																3
Rage Gear	3															3
Rage Gear+			3							2						3
Champion Gear													3	3		3
Champion Gear+							3									3
Ultimate Gear							2						3	3		3
Ultimate Gear+																3
Pandora's Gear								2			2
Pandora's Gear+								2			2
Zero Gear							2			2

Rings with Critical Boost

• Critical Sun

Kingdom Hearts Re:coded

• The Strike Armlet has Critical Plus as its ability.

See also

• Grand Slam
• All Critical
• Berserk (ability)

• Kingdom Hearts abilities
• Kingdom Hearts 358/2 Days abilities
• Kingdom Hearts coded abilities