Dance Dance Revolution Extreme Plus is a bootleg version of Dance Dance Revolution Extreme. It features some minor graphical changes from the original, and a speed hack which allows you to increase the song tempo by 10% or 20%.
Dance Dance Revolution Extreme Plus retains the original songlist from DDR Extreme. The game features a total of 240 songs, 14 of which are hidden and unlockable.
The increased song tempo is achieved by increasing the clockspeed (overclocking), however this can damage the machines internal CPU. If the tempo settings are changed, the speed increase will remain in effect even after the song ends.