For anyone that doesn't know, it's a ripoff of Konami's Beatmania, which predates it 10 years. Just like GH/RB were ripoff's of another Konami original (Guitarfreaks/Drummania). Albeit, it's a much more simplistic and idiotic-looking version of Beatmania, but the same basic premise. Just lower the buttons from SEVEN to three and......place them right on the scratch?