1. Drag and drop the "Game" file from the extracted folder into the applications folder
2. Go to the applications folder and control-click the "Game" file (Keep trying and it'll eventually let it run.)
3. Open and play!
If you get an error message upon playing, try putting the entire zip folder in Desktop, unzip, then drag only the Game app outside the folder to Desktop. If the screen turns to pitch black, close and restart! Keep trying to launch and eventually, it will let you.