GuitarFreaks V4 is the latest version of the series, and it links to DrumMania V4. They are essentially DM 14thMIX and GF 15thMIX, but the games had been united with a single version number since Drummania V.
DDR SuperNOVA 2 is, without a doubt, the biggest DDR released to date. Featuring over 300 songs that cover almost every genre imaginable and replete with more than 2,000 dance patterns.