Need help getting started

You're welcome, I am really glad to have inspired you!

Since it sounds like you are new to unity, I just want to make sure you knew an important step. You must open the "Game" scene before pressing "Play". Otherwise you will just be in an empty placeholder scene and would see nothing. To open the "Game" scene you can double click the file from the "Project" pane.

If you did that and still aren't seeing something, then it might be due to the way you copied assets. In the past, Unity has mentioned issues regarding using explorer windows for adding files. It seems to prefer you to use the Unity editor instead. Perhaps something didn't register quite right. To just play around with the demo, you aren't required to create your own project. The zip file I provide in the project can be opened from Unity as a project all on its own. So with Unity open, use the menu bar, "File -> Open Project..." and select the parent folder that holds the Assets and Project Settings folders.