1. Change your timezone to (GMT-12:00) International Date Line West, but dont close.
2. Open Shadowgun Deadzone.
3. Collect chips, then close Shadowgun Deadzone.
4. Change your timezone to (GMT+13:00) Nuku'alofa, still don't close.
5. Collect chips, then close Shadowgun Deadzone.
6. Repeat 1-5, Enjoy :D
Credits to: Anonymous.