I've spent many, many, many hours playing this airplane industry simulator. It was released by Koei in 1994 for the Super Nintendo Entertainment System. In it you play the CEO of a start-up International Airlines. Which means you get to decide what airplane manufacturer to purchase your planes from, what type of advertising to pour your money into, how many slots to book with each of the airports across the world, and not be outsold by your rivals. You also had to deal with everything from how friendly your stewardess was being to goverments being overthrown by radicals.
It seems that this game has found a new life due to the PS3 Sega Channel, so I guess its now a cult hit.