Many devices can heat up when running content-rich games or apps. However, if the heat bothers you too much, you can do:

• Close down the other applications and games before opening the game
• Make sure that your device is charged (50% at least) before opening the game
• Make sure that your device's operating system is up-to-date
• Make sure that you have the latest version of the game

Please also send us a message by selecting Settings⚙️ > Message Icon (on the right hand side of the screen), and describe the issue in detail.