Gairaigo Guess does not require an account and does not collect names, email addresses, or other personally identifying information. Quiz answers are recorded using a randomly generated session identifier to calculate aggregate answer statistics. Feedback submitted through the site is stored along with the selected question, the feedback category, and the time it was submitted.
Gairaigo (外来語) are Japanese words from (or based on) a foreign language, such as チョコレート (chokorēto), which means "chocolate." This game focuses on gairaigo derived from English.
Wasei-eigo (和製英語) are English-style words or expressions created in Japan but not used in standard English, such as ハンドルキーパー (handorukīpā), which comes from "handle-keeper" but means "designated driver." These are also included in this game.