The game is played in two parts. In Act 1, build up the fartometer by pressing the LEFT or RIGHT ARROW KEY to grab food. In Act 2, press LEFT or RIGHT ARROW KEY to fart at the right time to sail across the screen. Make use of the probs that appear to increase your distance.
Source
https://www.y8.com/games/the_incredible_dr_fartalot
The Incredible Dr. Fartalot screenshots
