The game gets progressively harder.
Use your arrow keys, or WASD to pitch the airplane up and down. Pitching up will cause the airplane to climb and lose speed, pitching down will cause the airplane to dive and gain speed. The faster you go, the more points you score when you collect the stars.
Flying through barns is worth approximately the same as collecting 50 stars.
Pitch Up: W,D,Up Arrow, Left Arrow
Pitch Down: A,S,Down Arrow, Right Arrow. Collect the stars and fly through barns, but watch out for geese, the airplane's natural enemy!...