Hi, I made a mistake by ordering Dancing Stage SuperNOVA2 normal edition - was meant to get the Special Edition that comes with the original dancing mat (since we don't have the mat). Does anyone know, are those two editions different enough, so that it would be worth to get both of them? Or is it better to just order a mat separately. We've got PS2 and would like a mat that is compatible with this game and of good quality... any suggestions? Thanks!