A lot of devices (especially high-performance ones) heat up when running resource-intensive games or apps. That's absolutely normal. However, if the heat bothers you, there are a few things you can do:
1️⃣ Close other applications before running the game.
2️⃣ Make sure your device is at least 50% charged before you start playing.
3️⃣ Make sure your device is updated to the latest version.

If the heat affects device performance, we recommend contacting the manufacturer for further instructions.