This is the best fighter on the PSP and I'll tell you why in this review.
Gameplay: Really fun, I've always been a fan of the DBZ series, it's not my favorite anime series, but I recoginize the characters from the series, so all in all, very fun.
Graphics: It looks exactly like the Budokai games on the PS2, it's really amazing, back then, we thought graphics like this would exist until 2010 or 12.
Storyline: It has a basic storyline, but it's a fighting game, fighting games don't really rely on storylines I guess.
Conclusion: You must get this game, don't avoid it even if your not a Dragon Ball Z fan, I just consider this the best fighter on the PSP, and even better than Tekken, no one really admits it, but I believe it's true, but I'm not saying Tekken DR on the PSP is a bad game, I own it, and I think it's a very good fighter, but I personally believe that this is the best fighter on the PSP.