Wait until the game rules screen is displayed after the "Now Loading" sign disappears. Then, hold Select and press Triangle, X, Square, X, Square, Circle(2), X. Release Select, then press Circle. If you entered the code correctly, you will hear sound. More information will be displayed during the game.
Keep all six of the Idol Jansi awake on Friday instead of playing Lilim's Quiz game.
Win dates with all thirteen girls for a new song and ending, including new FMV sequences for Kyouko and Lilimu.