AP Boost

AP Boost (also called AP Up) is an item that can be obtained in the Kingdom Hearts series. AP Boosts will increase your overall AP permanently by one. The item can only be used in the Items Menu when obtained.

In the title Kingdom Hearts: Chain of Memories and Kingdom Hearts Re:Chain of Memories, AP Boosts are replaced by CP (Cards Points) in Sora's storyline. CP allows more cards to be stocked in the deck, and everytime the players wish to create a second deck, the 2nd deck's CP resets to 0/ total (current) CP collected. In Reverse Rebirth, however, since Riku's deck modifies itself, he doesn't need CP, the CP bar is replaced by AP (Attack Points) which boosts Riku's strength.