Of your a Yu-Gi-Oh fan and if you don't have that much money to spent on real cards, you just got to buy this game.
Now, the duels are really cool, with some minor flaws, but almost nothing, you summon a monster and it appears, you summon a rare monster and it appears almost perfectly, I mean, it's a DS right?
One thing that caught my view were the races, you may think that it sucks and all, but it's going to surprise you, really.
There is the store where you can buy boosters and even decks, that's why I said "and if you don't have that much money to spent on real cards, you just got to buy this game.". When I said this, I intended to say that you can play with everyone else in the world without using real money to update your deck.
There's alot of people that play this game online, so if you want to play against somebody else, just connect and play, easy has that :P
Great overall really, many hours to spend and really addicting, and I'm a guy that rarely like's a game and finds it addicting.
I guess that is all I have to say, I hope you liked my review and I hope you buy the game.