As I said before, you can download Bluestacks to make your PC function just like a mobile device. Then you load the WGT app from the app store available from Bluestacks. Now you access the 2 credit videos.
Not so sure about that any more. I had not downloaded and installed BlueStacks on my gaming PC that i just got back into service until last week. It would not let me install WGT Mobile on it.
I then tried Nox and i was able to install WGT Mobile on Nox. BlueStacks kept saying you must be removed from the Beta system, Today though it let me install it. Not sure what the problem was last week.