Here's my steps:
1 - Get the game from Team A.R.G. website. Mouse is on the link I click
2, 3 - Download zip file, then place it in the documents section under the Arduino folder
4 - Change the name of the folder to match .ino file
5 - in Arduino, select file>sketchbook>game file
6 - run verify to receive error
Let me know if I'm missing a step. Greatly appreciated. Thank you!!