Marble on Rails

Let's watch!

You can change the viewpoint and change the number of balls.

Course edit mode sample video:
https://youtu.be/6qzmcdhbQ6k

* Course data Import/Export function
Push "Save Course to..." button.
Check "Export" and push "OK" button.
Specify the folder and file name you want to output.
(Android4)
Fixed file is output to the root of internal storage