If you want to launch a "Python 2" file, you usually do:
Code:
cd ~/games/PineFalls-0.5-pc
python ./PineFalls.py
but I don't think it can work in this case, because Mint lacks some Python libraries that are shipped with the game (they are inside the "lib" folder).
Just execute the .sh in the console, read the errors, see also what log.txt and traceback.txt say.