The notes for how to replicate it can also be found in this Google Document[1] and the payload for the injected game itself is also available[2].
[1]: https://docs.google.com/document/d/1TJ6W7TI9fH3qXb2GrOqhtDAb...
[2]: http://paste.ofcode.org/EiTmWXkmqJ4eAcJBvqEDwz