Next-Gen AI Stamp Rally 'Mistake-Finding Rally: Good & Lucky's Help Quest' Now Accessible via Smartphone

Amusement park 'Yomiuriland' will host the next-generation AI stamp rally 'Mistake-Finding Rally: Good & Lucky's Help Quest' from July 18 (Sat) to August 30 (Sun).

This event utilizes 'Platinum Rally' (※), an AI stamp rally system developed and operated by Balldite Co., Ltd., and can be accessed via the 'Yomiran Digital Leisure Map'. The storyline follows Good & Lucky, whose photos taken inside the park have been mysteriously altered by pranks from ghosts at the haunted house 'Hyu~doro'. Visitors team up to find the differences. Participants explore designated stamp points throughout the park and play 'spot-the-difference' with images displayed at each location. When a mistake is found, players submit answers using photos of the actual scene or voice recordings, and AI automatically judges correctness. Based on the number of stamps collected, participants can play a roulette wheel for a chance to win tickets to Yomiuriland-affiliated facilities or exclusive in-park discount coupons. Additionally, members of the Yomiran CLUB receive a double chance to win.

We invite all visitors to take on this unique summer-only challenge while exploring the park.

Overview

[Period] July 18 (Sat) – August 30 (Sun)

[Time] Park opening hours – closing time *Prize exchange: 13:00 – closing time

[How to Participate] Access the site via the 'Yomiran Digital Leisure Map'. QR codes will also be posted within the park.

○ Yomiran Digital Leisure Map URL: https://platinumaps.jp/d/yomiuriland_amusementpark?sr=1781

[Location] Entire Yomiuriland premises (including Pool WAI)

*Prize exchange location: Information desk at the main entrance 'Sky Gate'

[Admission] Free

*One participation per person during the event period

*Pool WAI admission ticket required to collect all stamps (Ticket for Pool WAI also grants entry to the amusement park)

[Others] Members of the official online 'Yomiran CLUB' can participate in the double chance draw.

Free membership registration here: → URL: https://land-member.yomiuriland.com/login/sign_up

※ AI Stamp Rally System 'Platinum Rally' developed and operated by Balldite Co., Ltd.

'Platinum Rally' is Japan's first AI-powered stamp rally system that uses artificial intelligence to determine stamp eligibility.

AI Application Highlights: Simply find the 'mistake' in the photo displayed on the stamp rally screen, then take a photo of the correct real-world scene or answer by voice—the AI automatically judges correctness. This creates a new form of immersive entertainment that goes beyond reliance on GPS or QR codes alone.

○ AI Stamp Rally System 'Platinum Rally' URL: https://stamprally.digital/

Yomiran Digital Leisure Map

A digital map that allows smartphone users to easily access information about four facilities: 'Yomiuriland', 'HANA・BIYORI', 'Yomiuriland Tembo Onsen Hanakage no Yu', and 'TOKYO GIANTS TOWN'. Users can check information on attractions, restaurants, and shops, and smoothly navigate to their destination while confirming their current location. The map supports five languages, making it comfortable for international visitors as well. URL: https://platinumaps.jp/d/yomiuriland?gm=146&floor=G