Um... this is good for kids. Though I am a Mario fan and decided to buy anyways. If you have played the REAL DDR and you can hold out on Standard mode, this game is NOT for you. It is for entry-level players.
However, I could only do Standard on real DDR and I have actualy gotten better playing HARD, VERY HARD, and I am approaching the SUPER HARD level. Songs like Bowser's Castle are REALLY hard. But the hardest songs are only 9 footers.
There are lots of elements that they left out in the game, Freeze and the carietys of modes are forgotten.
In short, this game is good if you are desperate and can't afford a PS2. If not, but the real thing and see where the REALY challenge is!