If you want to have a name or change your name, follow these instructions:
- You need to connect to Game Center, go to the settings of your phone, find Game Center and connect. The in game name will be your Game Center name.
- If you want to change it, you can also rename it in Game Center settings.
- You have to be connected to Google Play Games, use the green joypad on the main screen of Crush Them All and connect.
- To change your name, find the app Play Games on your phone, one the main screen of Play Games, tap on the little pen in the upper right corner to edit your name.