It is very easy to add games that you have downloaded onto your laptop or PC to your LG Viewty KU990 or KU990R. You need to download java game in .jar format. The game must be transfer to the external storage such as the Micro SD or Transflash card. You will used the USB Cable to connect your phone to the laptop or PC.
Set the phones USB mode to Mass storage (Menu > Settings >
Phone Settings > Connectivity > USB Connection Mode > Mass
storage).

Ensure Phone is connected and drag and drop the game into the Others folder.
The game file will be copy to the folder. Disconnect the phone and go to My Stuff and select Other files. Your downloaded game should be listed here. Select the file and click on Launch. The game will be installed onto your handset.