DDRMAX: Dance Dance Revolution 6th Mix Cheats

Extra options:
Hold Start when choosing a song to display a screen with extra options that include "Speed", "Freeze", "Appearance", "Turn", "Other", "Scroll", "Boost", and "Step" selections.

MAX 300:
After finishing the final song in heavy mode with an "AA" rank you will 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.

Candy:
After finishing the MAX 300 extra stage with at least an "AA" rank you will unlock the Candy extra stage. Complete this extra stage to unlock Candy.

So In love song:
Clear 20 stages in arcade mode.

Kind Lady song:
Clear 40 stages in arcade mode.

True... (Trance Sunrise Mix) song:
Finish 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.