Boost mode
 
 At the song selection screen, press Left, Right, Down, Up.
 
 
 View song list
 
 At the song selection menu, hold Left + Right + Start. Choose one 
 of the category letters to view songs that begin with that letter.
 
 
 
 
 Extra options
 
 After choosing a song at the selection screen, hold Start. Alternately, 
 choose a song at the selection screen, then hold Circle.
 
 
 
 
 Groove radar values
 
 Select a difficulty setting, then hold Start just before the song 
 selection screen appears. If timed correctly, numbers will appear 
 on the groove radar, indicating the groove value of each song.
 
 
 
 
 MAX 300
 
 Finish the final song in heavy mode with an "AA" rank to unlock 
 the MAX 300 extra stage. Complete the extra stage (MAX 300 in heavy 
 mode, at fast speed, and reverse arrows) to unlock MAX 300 in arcade 
 mode. Alternately, clear 100 songs in heavy mode.
 
 
 
 
 Play as Candy
 
 Complete the MAX 300 extra stage with at least an "AA" rank to unlock 
 the Candy extra stage. Complete this extra stage to unlock Candy.
 
 
 
 
 So In love song
 
 Clear 20 stages in arcade mode to unlock the So In love song.
 
 
 Kind Lady song
 
 Clear 40 stages in arcade mode to unlock the Kind Lady song.
 
 
 True (Trance Sunrise Mix) song
 
 Complete the Firefly (Be For U), Dive (More deep and deeper style- 
 Be For U), or True (Radio edit - Kosaka Riyu) songs. Once two of 
 those songs are completed, the True (Trance Sunrise Mix) song will 
 be unlocked.