My son is taking his gameboy next month and i didn't give a thought to the noise it makes!! headphones definately on the list now - i don't want the poor people near us having murder on their minds when we get off the plane
Most airplanes have a games system on board anyway (usually a nintendo) but it is safe to take a Gameboy just in case your plane doesnt have one, or if it is not in operation. You are allowed to use it.