Shrek: The Battle Of The Belch
In this game Shrek and Fiona compete in a belching competition. You choose one of them and need to belch longer than your opponent. Your character starts belching automatically. When it happens you need to click on his/her belly repeatedly to make him/her keep belching. When you're done, Donkey and Puss in Boots will rank your belch. If your score is higher, you win the round. You need to win 2 out of 3 rounds to win the competition.