Cool Playground is now out on dropbox
https://www.dropbox.com/s/rlxkcsw6j5juj88/Cool_Playground.apk?dl=0
And so are it's OBB and DATA files.
https://www.dropbox.com/s/seor9qa7hqg13ws/Cool%20Playground%20Stuff.zip?dl=0
You are free to copy, distribute and transmit this work under the following conditions: