 Games may differ on how the player uses an item.Some games, many in the Mario and Sonic series, an item is automatically used when the player character comes into contact with it.There are also games, such as those in the Streets of Rage series, and the first Prince of Persia games where the player character may walk over an item without collecting it, if they do not need it yet, and the player must push a particular button for the character to collect it, but it still used immediately, when the button is pressed.