I stopped playing coinflip as you only get a 1.94x reward when you guess it right. I think it is better to play/mine other games if you want to increase your BFG tokens.; most of the times, I play on Mines or Dice.
I also played that game, there are so many games here on Betfury you have to experiment to find out if you are comfortable and you are lucky on that game I'm not lucky on this one I lose a lot of coins and Betfury token on this one, I better be off playing dice, Mine, Crash game and their new game triple, you have to play alternately, there are time that you are lucky in one game and bad luck on another, sometimes you have to experiment.