- 2014-01-10 / v1.0.6 Fixed some minor bugs.- 2013-10-03 / v1.0.5 Start the game only after the Knock button is clicked- 2013-07-19 / v1.0.4 Fixed some minor bugs.- 2013-07-09 / v1.0.3 Fixed some minor bugs.- 2013-06-28 / v1.0.2 Supported world ranking- 2013-06-06 / v1.0.1 Fix bug of dark screen in some HD devices ( e.g. Xperia Z, HTC J butterfly ).