Collector interest
PSP entry in the Boku wa Koukuu Kanseikan air-traffic-control sim series, set at Haneda. The controller-of-the-skies genre is deeply rooted in Japanese gaming and never crossed borders, with publisher Sonic Powered pressing this title in small numbers. Its high value, holding up even loose, reflects genuine scarcity rather than fame, prized by enthusiasts of niche Japanese simulations.