The Game is easy. At the beginning you get 3 farts. Now you can send a fart to someone else who using this app and in your contacts. It will be played even in silent mode.
Additionaly you can attach a message or choose another of the over 1000 sound effects.
When you receive a fart, you get credit for it.
Click an contact to invite him. If he installs the app you will be awarded 2 bonus farts.
This app sends an sms to yourself on first start to verify your number.