This trick is performed by exiting the game and selecting 'Settings' and going to 'General', scrolling down to 'Date and Time' and changing it forward. If done correctly a window will appear on screen when you return to Deer Hunter telling you that you have earned a daily bonus. Do this several times and you can get faster hunter bugs.
Perform the following trick when you start to get low on energy and do not have enough gold to get more. Exit the game and select 'Settings' and go to 'General', scroll down to 'Date and Time' and put the time forward 2 hours. When you return to the game you will find that your energy will be re-filled.