What is Groove Radar?
1.
A system of displaying the difficulty of a song in
AIR represents the frequency of "jumps" (two-arrow hits) in a song.
FREEZE represents the frequency of hold arrows.
STREAM is the overall density of steps in the song.
VOLTAGE is the maximum density of steps.
CHAOS is still somewhat unknown. A DDR simulator called
Wow, the groove radar on this song looks hard!