This is one of two pirated Dragon Ball Z games that were sold on Ebay in the summer of 2001. The box was done in a more convincing matter than in Dragon Ball Z 2. The lack of a company logo also makes this one look fake. Of course, the fact there there were no DBZ games ever released in North America should have given away the fact that these are pirates.

I saw another one on sale in November 2002. The picture of the cart is much clearer (see the third image). The seller claimed that Capcom had made the game, which is false, of course.