What this is
Japan's oldest amusement park gets taken over by Sergeant Keroro and his Keronian crew for a summer-long collaboration tied to a new theatrical film. Running July 15 through August 31 at Asakusa Hanayashiki, the event layers anime fandom onto the park's retro carnival atmosphere with festival games (target shooting, shuriken throwing), a keyword rally, character panels, photo spots, and special in-park announcements voiced by Keroro himself playing on rides and attractions. Collectors can chase 14 different photo-style cards distributed randomly with collaboration food purchases, and two dedicated meet-and-greet photo sessions with Sergeant Keroro are scheduled on August 8 and 29.
Who should go
Sgt. Frog fans of any age, especially families with kids who'll enjoy the carnival games and character photo ops. The retro park setting makes it a fun outing even for casual visitors curious about Hanayashiki itself.
Good to know
Collaboration tickets are sold through Seven Ticket (7ticket.jp), which can be accessed in English and accepts some foreign credit cards — convenience store pickup at 7-Eleven is the most straightforward option for visitors without a Japanese address. Asakusa Hanayashiki is a small, historic amusement park with a relaxed, family-friendly atmosphere; it is not a large theme park, so the collaboration overlays the existing rides and grounds rather than filling a vast space. Cash is recommended for food and game stalls inside the park, though the ticket counter may accept cards. The park is compact and fully walkable in a few hours, making it easy to combine with a broader Asakusa sightseeing day. Photo and video of character panels and scenery is generally permitted, but check with staff regarding the formal two-shot photo sessions on August 8 and 29.
This event was sourced and translated from Japanese by What's On Japan. Details may change — verify with the official source before attending.