Firstly let me start off by saying that this is hands down thee BEST game out of all the YU-GI-OH! World Championship games made so far. It has just over 3,500 cards to collect which is alot, also you can do turbo duels in this game as well as the original duels.So if you have just got into YU-GI-OH (the TCG and anime) then I would recommend you to buy this game it definatly has hours of entertainment for people who play this.
YU-GI-OH! World Championship 2010 has two modes you can do, you can do world championship mode where you can duel a CPU of opponents of duel monsters and maybe a few anime series characters whenever you like. Also you can do Tournaments from three levels and tag tournaments too. Also play Wi-Fi to play with YU-GI-OH! players from all over the world which is pretty good.
The second mode is 5D'S Story Mode, this is where you go into the world of the YU-GI-OH! 5D's anime and you are at the begininning a member of the Arcadia Movement, you gradually play through it regaining your memory and at one point get to go to the Spirit World where you try to rescue someone, through dueling and puzzle solving. You also get introduced to Turbo duels in story mode using speed spells,also you are thrown into the story of the Dark signers (which actually happens in the anime).
I would say the great thing about this game is the different things you can do, also how(for the first or second time in the WC series) is in 3D graphics and actually walk around the Satellite and New Domino city areas (rather than 2d graphics like the previous versions).Basically If you want a really great, addictive, hand held YU-GI-OH game that will save you hundreds of pounds buying cards and is quite exciting and has thousands of cards and loads of unique stratigies and duel styles to use, then buy this version and skip the earlier ones as this is the best World championship game by 1,000 miles.