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 through the game Settings⚙️ > Help and Support > Contact Us button and describe the issue in detail.