Block Bonus (ガードボーナス, Gādo Bōnasu?, lit. "Guard Bonus") is an ability which appears in Kingdom Hearts 358/2 Days. It allows the user to sometimes generate HP prizes when guarding.
In Kingdom Hearts 358/2 Days, Block Bonus is an Ability Panel that must be linked to a Block ② or Block ④ panel.
The Block Bonus Ⓛ can be synthesized for 8800 munny once Roxas is promoted to Novice rank.