Once you've downloaded the .jar file, just transfer it to your mobile from the computer. You may do this by either sending it over Bluetooth (if your PC supports it), or else use the USB data cable you got with your phone to transfer the file.
After transferring it, just open the file on your mobile and the game will run.
Hope this helps.
After transferring it, just open the file on your mobile and the game will run.
Hope this helps.