Hi,
Recently I just launched a unique puzzle game called Circles and wanted to say that developing that game with Corona was a blast. The development went a lot faster from where I learned alot and i am just being grateful that Corona Community is so vibrant. Much of the confusion for that game was solved here on this forum. Thanks to Rob, Brent, sape, memo and many others who contributed with their tips and answers. Thank you guys!!
Here is the link for the game:
https://play.google.com/store/apps/details?id=com.linent.Circles
It’s still in developmental process, but do play it and if you find any bugs, kindly report it here so I can fix them. 
Naffah Amin