If you have ever dreamed of traveling within a Pokémonthe Tokyo subway just made your wish come true, albeit in a rather sticky way. Starting today, March 2, 2026, the Hanzomon line has been completely dyed purple to welcome Ditto (known as Metamon in Japan). This visual invasion is no coincidence. This is a massive campaign to celebrate the launch of Pokémon Pokopiaone of the most anticipated titles for the brand new Nintendo Switch 2. Passengers no longer only travel to work, now they do so surrounded by the charismatic transforming spy.
The debut of Pokopia and the Hanzomon Line
The authority for this news comes from Tokyo Metro's official statement, which confirms this event as the first full advertising takeover of the Hanzomon line. Two fully customized trains will be running until March 15, 2026, offering an immersive experience that goes beyond a simple poster. Choosing this specific line is a brilliant marketing move. The Hanzomon line's signature color is purple, Ditto's exact shade, allowing the train to look like an extension of the Hanzomon's body. Pokémon.
The “Metamon-Hanzomon” word game

The experience of travelers in Japan includes a play on words that only Japanese ingenuity could devise. In Japanese, Ditto is called “Metamon,” which rhymes perfectly with “Hanzomon,” creating an irresistible phonetic connection for local audiences. Inside the carriages, the transformation is complete: the handrails are in the shape of Ditto, the seats and floor are a vibrant purple, and there are hanging signs everywhere. Oshiage (Skytree), Hanzomon and Shibuya stations have also joined the fever with special displays and decorations that will be available until the middle of the month.
The unstoppable marketing of The Pokémon Company
The reliability of this collaboration is part of the brand's global expansion strategy for 2026. This takeover of the Tokyo subway joins other recent announcements, such as the alliance with the airline All Nippon Airways (ANA) to launch themed aircraft as part of the anniversary celebrations. The Pokémon Company continues to demonstrate that its ability to integrate into everyday life—whether in the sky or underground—is unmatched. For fans, seeing Ditto on public transportation is a guarantee that the franchise continues to focus on tangible and fun experiences outside of consoles.
The marketing that we all want to “copy”

The collaboration between Tokyo Metro and Pokémon is a success story where design, location and wordplay align perfectly to generate massive impact.
Ditto is possibly the best character for a campaign of this style. His simple face and ability to be anything make him extremely friendly to the general public. I think it's brilliant that they took advantage of the purple color of the Hanzomon line to save on paint and gain in concept. While other studios fight over graphic power, nintendo and Pokémon They prefer you to sit on a giant Ditto on the way to the office. It's bizarre, it's cute, and above all, it's pure high-end Japanese marketing. I wish all the subways in the world were this colorful!
If you could choose any other creature from Pokémon To decorate public transportation in your city, which one would you choose and why? We want to read your opinion in the comments!
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