The song "OPERATOR" by PAPAYA is mistakenly credited in original Arcade releases of the game as "OPERATOR (Two Gees Mix)", despite the song actually being the original version. This was fixed starting from Dance Dance Revolution 3rd Mix PLUS!.
There is unused data for the song "CAN'T TAKE MY EYES OFF YOU (70's Remix)" by BEAT BOX within the game. This includes a banner, background, graphics, lyrics and a step chart.
The original background for "AFRONOVA" contains a heavily edited photo of Reese Witherspoon, this was changed in Dance Dance Revolution 3rd Mix PLUS, possibly due to legal issues.