The 2007 installment and the first installment of Yu-Gi-Oh! WCT on the DS. You are bound to get something new from here.
The basic gameplay itself is renowned. Draw, Standby, Main, Battle, Main 2 and End Phase are the key parts of the game, being the different phases you can play different cards effect efficiently. New visuals with this game will have a pioneer Yu-Gi-Oh! player stunned. While the bottom screen handles the heavy work with all stat displays, icon displays, phase notices, chain activation notices, and it just basically looks similiar to the Yu-Gi-Oh! WCT 2006 screen, but now the top screen is there. The top screen of your DS handles a 3D representation of the battlefield, with all monsters have their own sprites which pop-up when you summon them and also during the Damage Step. Colours everywhere ascertain this is no poorly animated game, all shades mixing seemlessly to make you completely comfortable with the new menu and battle colours.
The sound in 2007 is as limited as the rest of the Yu-Gi-Oh! games. Simple as a different track for each level of monster, and if it takes you long enough, it changes once your enemy or you is past the 4000 HP mark (or I presume it is that). Contemporary jingles and repetitive beats might drive you insane but they accompany the game with limited distraction, so I guess it is good.
The gameplay itself is similiar but so different, the battles are played out the same. You defeat opponent or opponent defeats you, someone gets minimal duel points and that's it. This game however is smarter than the older games. It saves the data AS you are buying a booster pack, so you can't continually reset your game until you get the cards you want. This means, the game itself is a lot harder to progress through card-collection wise. You start with just Lv.1 characters, and once you beat them 5 times each, you unlock Lv.2 characters, once you beat them 10 times, you unlock Lv.3 characters, and so on. Though on top of regular battles, you have hours of Duel Puzzles, Theme Duels and Limited Duels to unlock and blast your way through, sometimes being a good source of DP. The deck construction mechanism in this game is unparallel to any of the others, with a miriad of filters at your side and sorting option, you should have no problems at all compiling just the deck you want (presuming of course you have all the cards you want). This card-sorting and viewing system is simply the best so far in the series, and will for once NOT have you frustrated with your collection.
Overall, Yu-Gi-Oh! World Championship 2007 is a king's-upgrade on the four or five games in a row on GBA that were literally if-not close to exactly the same. So finally, the WCT series has itself a truly worth it title, and if there is any up to this point you should get, I suggest VERY strongly that you purchase this one.
Graphics - 9/10
Sound - 7/10
Gameplay - 8/10
Overall - 8.5/10