You Don’t Know Jack is a trivia video game released for the Microsoft Xbox 360 in the United States. It belongs to the trivia genre and was categorized as trivia for easy discovery. The title was added to iOctavio.com on 2011-02-15. The game was developed by Jellyvision Games and published by THQ. It brings the long running quiz show franchise to the console with a focus on humor, rapid fire questions, and a distinctive presentation hosted by the fictional character Cookie Masterson. The gameplay supports up to four players locally and includes online leaderboards for competitive scoring. The question set covers a wide range of topics including pop culture, history, science, and wordplay, delivered through multiple formats such as multiple choice, fill in the blank, and the signature Jack Attack round where players must match clues to a central phrase under time pressure. The game features a large database of questions ensuring high replay value and includes downloadable content packs that expand the question library. The visual style mimics a television studio with animated transitions, witty commentary, and a dynamic score display that reacts to player performance. Highlights include the comedic writing that parodies traditional quiz shows, the fast paced nature of each round that keeps sessions short and engaging, the variety of question types that test both knowledge and quick thinking, and the multiplayer focus that makes it a popular party game. The addition to iOctavio.com on 2011-02-15 marks its catalog entry for users seeking trivia titles on the Xbox 360 platform.