Reaction Boost (リアクションアップ Riakushon Appu, lit. "Reaction Up") is an ability that appears in Kingdom Hearts II. It increases the power of Reaction Commands by 50%.
Mechanics
In Kingdom Hearts II, Reaction Boost is a support ability that costs 2 AP to equip.
Learning Reaction Boost
Kingdom Hearts II
- Sora learns Reaction Boost at level 15 with the Dream Sword, 23 with the Dream Shield, and 33 with the Dream Rod.
- The Guardian Soul has Reaction Boost as its equipment ability.
Kingdom Hearts II Final Mix
- Roxas learns Reaction Boost at the beginning of the Third Day in Critical Mode.
- Sora learns Reaction Boost at level 15 with the Dream Sword, 23 with the Dream Shield, and 33 with the Dream Rod.
- The Guardian Soul has Reaction Boost as its equipment ability.