how to trick FART FOR YOUR LIFE to get a free level

[maninblack]

Googling around I found this:

ehy guyz!
I found a little trick after the last upgrade!
In the level selection screen, if you press the menu button on your device, you will get a "manual Sync" button.
Tap it and you will get another free level!

Is it the only known trick for this app?