Play Minigames at any Time
In order to play the four minigames (Buckbeak's Hippogriff Glide, Riddikulus Boggart Challenge, Wizard Cracker Pop-It, and Tea Leaf Divination) at any time, you must first unlock the games in story mode. After you unlock them, you may play them at any time by choosing the Mini-Games option on the main menu and selecting the game you want.