Few franchises have traveled as far as Pokémon. It started in 1996 as a pair of Game Boy games in Japan, dreamed up by Satoshi Tajiri, whose childhood bug-collecting inspired the idea of catching and trading creatures. Nearly three decades later, it’s the highest-grossing media franchise in the world, bigger than Star Wars, Marvel, or Mickey Mouse.

The secret is reach. Pokémon isn’t just a video game series. It’s an anime that has run for over 25 years, a trading card game played in tournaments worldwide, a stack of feature films, and a mountain of toys and plushies. In 2016, Pokémon Go sent millions of people outside to catch creatures on their phones, pulling in fans who had never touched a Game Boy.

That kind of reach makes Pokémon a natural fit for postage. Postal services love subjects that speak to everyone, and few characters are as instantly recognized as Pikachu. It’s a fitting twist. A game built on collecting has become something people collect in a whole new way.

Check out the Pokémon stamps Mystic has available below: