EXP Boost (EXPアップ EXP Appu, lit. "EXP Up") is an ability which appears in Kingdom Hearts 358/2 Days. It can be found as either EXP Boost LV1 and EXP Boost LV2. Both EXP Boost LV1 and EXP Boost LV2 increase the amount of EXP rewarded by defeating enemies, with EXP Boost LV1 increasing it by 10%, and EXP Boost LV2 increasing it by 20%.