BeatmaniaIIDX 20 Tricoro is a music video game and the 20th installment of the Beatmania IIDX series of video games. Beatmania IIDX 20: Tricoro retains the basic game play since the start of the series, in which players hit notes that fall from top of the screen using either keys or turntables that need to be scratched, which will fill up the Groove Meter. To pass on, the player must have at least 80% of the Groove Meter at the end of the stage. Both the two new "innovations" introduced in Beatmania IIDX 17: Sirius (Charge Notes and Backspin Scratches) are retained.