Step 1 : Choose the game you'd like to play, press and hold the button, then tap "Download" when a menu appears
Step 2 : You might see a message similar to this
We will NEVER share or misuse your data and our apps will NOT harm your device. Click "OK" to continue game download
You can see your download progress in your notifications area.
Step 3 : When the download is complete, tap on the "Download Complete" button to begin installation.
Step 4 : If you see "Install Blocked" or other permission issues, click Android Security.
Click "enable unkown sources"
Step 5 : Click "Install" to install the app you just downloaded. Accept the game's permissions as you normally would.
Step 6 : Click "Open" to play the game and enjoy!