What are the differences???

Posted by RyouSensei on .

Ive found some roms that will have the standard, then a few others that say stuff like "this store exclusive" or "collectors edition" what is the difference? For example, Beyblade Metal Fusion for the DS has the regular, then it has "Collector's Edition," "Walmart Exclusive," and "Toys R Us Exclusive." Wht is the difference between all these???