If you have turned Wireless ON and configured a Wi-Fi network, your device will download Micromods for the games you have played automatically on the first restart of the LeapPad Ultra after playing the game.
If you experience any difficulty downloading micromods for a game you have played on the LeapPad Ultra, the micromods will also automatically download when you connect the LeapPad Ultra to your computer and sync it to the LeapFrog Connect application.