"Aquarium is Not Dancing" x "Sunshine Aquarium" Collaboration Part 2! Night-time Exclusive Experiential Mystery-Solving Event "Challenge from the Director" to be Held!!

Total downloads have exceeded 800,000. The second collaboration event between the free horror game "Aquarium is Not Dancing," developed and completed by the horror-averse author Daida-shi alone over 8 years, and Sunshine Aquarium (Ikebukuro, Tokyo), a night-time exclusive experiential mystery-solving event titled "Sunshine Aquarium x Aquarium is Not Dancing: Challenge from the Director," has been decided!

This collaboration, which was held in October-November 2025 and received a great response, will this time be titled "Challenge from the Director." It will deliver a more immersive experiential event that leverages the special situation of a night-time exclusive aquarium.

Inside the aquarium, where performances reminiscent of the main game are scattered everywhere, this time, with the theme of "Challenge from the Director," a mystery-solving rally will be developed that maximizes the stage of the night aquarium. It is designed as a sequel to the first collaboration event "Aquarium is Not Waking Up," allowing both those who participated in the first event and those challenging for the first time to immerse themselves in the world of "Akuodo." Participants in the mystery-solving rally will also receive an original ending card, with designs changing between the first and second halves of the event.

Furthermore, we will welcome fans with an even greater volume than last time, including sales of original goods using illustrations newly drawn by author Daida-shi, and special collaboration menus with Tully's Coffee.

Please enjoy the outcome that awaits beyond the mystery in the mysterious aquarium you've wandered into again.

[Comment from Daida-shi, author of "Aquarium is Not Dancing"]

The first collaboration... the director's "I'd love to do it a second time! Hehe!" has become a reality, and I, Daida, the original author, am more nervous than anyone. I can't thank the staff enough. Just tell me anything, and I'll do it. I really will. And the fact that there's a second time means the first time was well-received. Thank you to everyone who visited more than expected and always stirs up the companies. Please stir things up this time too.

Event Outline

■ Night-time Exclusive Experiential Mystery-Solving Event "Sunshine Aquarium x Aquarium is Not Dancing: Challenge from the Director"

・Date and Time: June 12 (Fri) - July 20 (Mon/Holiday)
Weekdays: 16:00-19:00 / Saturdays, Sundays, and Holidays: 17:00-20:00
*Last admission is 30 minutes before closing.

・Venue: Sunshine Aquarium Main Building

・Admission Fees:
Adults (high school students and above) 2,600 yen - 3,200 yen, Children (elementary and junior high school students) 1,300 yen, Infants (4 years old and above) 800 yen
*This collaboration can be entered with regular admission tickets.
*Ticket prices vary depending on the admission date.
Please check the event page on the Sunshine Aquarium official website for details.
*Mystery-solving rally is 500 yen (tax included)

・Event Special Website: https://sunshinecity.jp/aquarium/event_performance/event/entry-37195.html

Event Content

■ Mystery-Solving Rally

The popular mystery-solving rally from last time has been powered up even further!

This time, the mystery-solving rally will be held as a special project titled "Challenge from the Director."

Can you correctly answer all the challenges posed by the director within the aquarium, enveloped in the world of "Aquarium is Not Dancing," and reach the truth?

Furthermore, participants in the mystery-solving rally will receive one "Original Ending Card" featuring newly drawn illustrations for this collaboration!

・How to participate: Please purchase the "Mystery-Solving Rally Sheet" on the reservation site "Asoview!"
Sales start from June 5 (Fri) at 10:00.

・Participation fee: 500 yen (tax included)

*Detailed purchase methods will be announced later on the Sunshine Aquarium official website and official SNS.

・Participation novelty: Original Ending Card

*Novelty designs differ between the first and second halves of the event.
*The rally and each novelty will end once supplies run out.

Original Ending Card

・"Penguins in the Sky" Tank Ver.
First half: June 12 (Fri) - June 30 (Tue)

・"Jellyfish Drop" Tank Ver.
Second half: July 1 (Wed) - July 20 (Mon/Holiday)

[Synopsis]

A letter arrived at Sunshine Aquarium.

Surprisingly, it was from the director of Bianca Aquarium. The letter contained encrypted characters on a map of Sunshine Aquarium, which seemed to be a message but could not be deciphered.

Sunshine Aquarium is looking for people to solve this mystery and is holding a mystery-solving event.

Can you solve all the mysteries posed by the director of Bianca Aquarium—

■ Aquarium Decorations / Outdoor Productions
From the entrance, Suzu and Retro's