[2] 3rd Style removed the 4-keys mode from previous installments and replaced it with the Light7 difficulty, giving most songs a fully separate, easier notechart.

[2] Beatmania IIDX tasks the player with performing songs through a controller consisting of seven key buttons and a scratchable turntable.

[4] Hitting the notes with strong timing increases the score and groove gauge bar, allowing the player to finish the stage.

[5] 3rd Style removed the 4-keys mode from previous installments and replaced it with the Light7 difficulty, giving most songs a fully separate, easier notechart.

In late 1999, the publisher hired artist Goli to design graphics and characters for Beatmania IIDX 2nd Style.