BODY: Japan's most unlikely detective duo just got a lot more colorful. At a July 29 unveiling event, publisher Imagineer confirmed that Mystery no Arukikata 2: The Mermaid Legend Murder Case will launch for Nintendo Switch on September 17 — and dropped a genuine surprise: a hidden scenario featuring national TV icons Gachapin and Mook appearing as themselves.
The Mystery no Arukikata ("The Way to Walk Through Mystery") series is a sly riff on Chikyu no Arukikata, Japan's iconic Globetrotter travel-guide brand. The games wrap traditional whodunit adventure gameplay in a tourism-guidebook aesthetic, sending players to scenic Japanese locales to unravel murders. This sequel plants its investigation in a coastal town steeped in a local mermaid legend, layering folklore atop the crime.
The headline reveal, though, was the hidden scenario. Gachapin — the friendly green dinosaur — and his fuzzy red companion Mook are cultural institutions, having anchored the long-running children's variety program Ponkickies since the 1970s. Seeing them show up "as themselves" inside a murder-mystery adventure is exactly the kind of absurdist crossover that generates headlines in Japan.
Imagineer used the production presentation to spotlight the game's cast and premise, positioning the September 17 release squarely in the busy autumn window ahead of the year-end rush. Pricing and edition details are expected to follow as launch approaches.
The insider take
From Tokyo, the Gachapin and Mook cameo lands harder than it might read abroad. These aren't obscure mascots — they're multigenerational comfort characters that Japanese adults grew up with, and in recent years the pair have leaned into an ironic, extremely-online persona (Gachapin has bungee-jumped, raced, and cameoed everywhere). Dropping them into a somber mermaid murder plot is peak Japanese tonal whiplash, and it signals Imagineer is chasing social-media buzz as much as mystery-genre fans. Expect the reveal clips to travel far wider than the game itself.
Originally reported by AUTOMATON (Japanese).