Please follow the instructions to change your avatar:
- In the Lobby, tap on the avatar in the top-left corner.
- Then tap on the profile picture again.
- Choose your avatar.
- Save the changes by pressing the Set avatar button.
You can find the full list of avatars in the Collection. To reach it, tap the customization case in the Shop, then hit the Collection button. Some avatars can be purchased with sprays, some are available only within special promotions or upon getting maximum trophies at an Alley.
The only way to use a custom avatar is to connect your game to Facebook and set your Facebook avatar.