Collector interest
An action-platformer by Game Freak released only in Japan in 1994, just before the studio created Pokémon. Its desirability is strong: cutting-edge tech in the Mega Drive's late life, an electric hero with a memorable design, and above all the signature of a developer who became legendary. Never sold in box outside Japan at the time, this title ranks among the console's most coveted Japanese exclusives, sought as much for its quality as for its author.