Fly an F-16 through a tunnel using your microphone. Avoid the stone ceiling and the hot lava floor. Watch out for rocks.
Your aircraft will constantly and increasingly lose altitude while lowering its nose. Use your microphone (by making any type of noise) to add thrust and direct your aircraft upwards. The longer the noise, the faster you will climb. Fly as far as you can while avoiding the floor, the ceiling and the obstacles in your way. In order to fully control the airplane during the game, play in a quite environment, without air conditioning/vents or wind (as the mic is sensitive to air blows).