I think I played it, not quite sure which one though. I had to train my digimon within some green area, as far as I remember, and get new breeds or sth of the kind.... Really enjoyed it back then, though know I don't remember c**p. Could you post some pictures of the one you are playing? The ones I saw on google aren't very promising.
Also, how is the story behind it? I think mine didn't have any or I didn't pay attention