press Red, Blue, Green, Blue, Red, Green for hidden mode. When the bars get to the upper area they disappear making it very hard to hit them properly.
press Red, Green, Blue, Pick (x2) for fast forward mode. The bars will scroll faster.
press Red, Green, Blue, Pick (x2), Red, Green, Blue, Pick (x2). The bars will scroll even faster.
During an intermission sequence, hold Triangle.
press Blue, Green (x2), Red, Green, Pick for random mode. Certain notes will be randomized.
press Green, Red, Blue, Green, Blue, Red, Pick . Notes will appear closer to the play line.
At the mode selection screen presss Red (x3), Green (x2), Blue (x3), Pick . Only 2 chords allowed in this mode.