Terms of use

Last updated: October 3, 2026 · English translation: October 20, 2026

Enjoy Niwatoko Lab's games and quizzes while respecting each participant's choices. Please also read the rules and notices for each service.

Play safely

Do not pressure anyone to participate, answer, eat or drink, or disclose personal information. Do not use the services while driving, for dangerous forfeits or for gambling. Quizzes are entertainment, not professional medical or psychological assessments or guarantees about the future.

Prohibited conduct

Unauthorized access, excessive traffic, disruption, harassment, unauthorized disclosure of personal information and infringement of third-party rights are prohibited.

Our work and sharing

Sharing links is welcome. Please do not reproduce, redistribute or sell text, images or programs without authorization, or impersonate the operator. Uses permitted by law are not restricted by this notice. Follow each app's instructions when sharing results.

Service availability and external services

Features may change or become temporarily unavailable due to updates or maintenance. External services have their own terms. These notices do not exclude any liability that cannot legally be excluded.

For bugs or questions about rights, contact us.