In Japan, if Ryo buys a box of chocolate he will get to participate in a store raffle and have a chance to win a prize, but the chances of winning are very low. He also will keep the box of chocolate in his inventory, but it cannot be used for anything.
In Hong Kong, he will receive a random capsule toy. The chances of him receiving a rare one are very low. Unlike before, he will not keep the box of chocolate.