I remember renting this game as a kid and spending upwards of 30 minutes trying to figure out how to play it. Most rented games didn't come with an instruction manual so you had to pretty much figure it out on your own. However this game with its special button presses (you move around in the plane by holding button 2 and pushing a direction) and awkward flying simulation meant not having it was going to be painful.
It isn't a really forgiving game so you are going to have to invest some time in learning how to play this well. Certainly not one of the better SMS games available.