User Summary The second volume of Seirra's You Don't Know Jack series comes to the PlayStaion in You Don't Know Jack Mock 2. Gameplay follows the conventions established in the first You Don't Know Jack game, featuring fast-paced trivia questions and a witty, if not mildly insulting, announcer. The television gameshow-styled interface enjoys a smoother 3D presentation in this installment. You Don't Know Jack Mock 2 features 750 new questions and a new type of questions called "CoinkyDinks." With enough controllers, the game can support up to three players (or teams) competing at once.