Talk:JoJo's Bizarre Adventure: Diamond Records/@comment-31532624-20170316150446/@comment-918683-20170316232634

On the home screen, hit the little "+" button next to your AP. Alternatively, you can attempt to do a quest if you don't have enough AP for it. Either way, a menu will pop up giving you the option to use either a Diamond Coin or a Sandwich to refill your AP.