Improvements in WC2010 over WC2009

- You only have to duel opponent 3 times instead of 5 times to unlock packs

- Your dueling records are available by talking to the characters via their Information option. It is useful to know if you've reach 3 wins for the opponent

- You no longer have to win all structure duels to unlock the sale of structure decks in shops

- You can buy multiple structure decks before completing the game now. Previous game, you could only buy one deck and had to wait till game completion before you were allowed to buy more. (I have Zombie Madness and Warriors' Strike so far after going back to the shop when there was a pop-up for new structure deck and could buy another! I think the number of times to check your menu is after very 10 duels.)

- Racing tracks are more fun and have more items and obstacles

These are some of the few I can think of now. I don't think the Artificial Intelligent (A.I.) is any better though...

One clarification on the Card Password system: To use you need at least to have a copy of the card or 80% of the pack list containing the card, so you don't have to buy multiple structure decks for cards. Password of the card is found on the left bottom corner of the physical card or you can look for the image in the Internet. Looks like it'll be very easy to build Machina Gadget if you can unlock Machina Mayhem structure deck early.

I'll update again as I progress further.

My WC2010 Early Game Deck Guide

I've played until the turf battles and thought I share the deck used so far. It has evolved from the starter deck into a Tuner Beat Deck. Rauzes has posted a deck of that sort in his now defunct The Gaijin Duelist blog, based on Road/Hyper Synchron or Trap Eater/Gale with Battle Tuned card.

I build mine in the game based on card availability as the Starter Deck given is not very strong. I spent most of the DP on the DT packs and the best monsters you can get are Synchros like Brionac, Mist Wurm, AOJ Catastor and Goyo Guardian as well as tuners like Mist Valley Soldier and X-Saber Airbellum. Mist Valley Soldier also works well with the Icarus Attack which I recommend transferring over to the main from sidedeck. When your tuners are all 3-4 stars, you need to use weenies that can survive and the starter deck's Nimble Momonga does the job well. Powered Tuner given in the starter deck also works with so many tuners available.

http://yugioh.wikia.com/wiki/Duel_Terminal_-_Synchro_Awakening!!

Notable cards: Cyber Dragon, X-Saber Airbellum, Mist Valley Soldier, Brionac, Mist Wurm, X-Saber Urbellum, AOJ Catastor and Dust Tornado

http://yugioh.wikia.com/wiki/Duel_Terminal_-_Invasion_of_Worms!!

Notable cards: Goyo Guardian and MST

Remember to check for the cards available in the packs before buying as the follow their real world counterpart namesake. I recommend buying half a box each time to see if you already get the cards you require. For spell and trap staples, I get them one of the Structure Deck (SD). Zombie Madness makes a good choice for that lone SD you can buy before completing the game as it contains a good number of staples like Heavy Storm and Torrential Tribute. Check the in-game recipe viewer and you will see the cards available in SDs.

Another tip for the game is to talk to everyone you see at least once like RPG games because some Non-Playable Character (NPC) give useful tips and hints. Move to all corners of the area and look out for yellow arrows showing that some objects that can be checked for treasure. I'll update again when my deck evolves again and I think it should be to Lightsworns when Light of Destruction is unlocked later in story mode!

Updates: I manage to defeat Peko, a girl in Satellite, consecutively 3 times in Structure Deck duels (used Spellcaster's Judgement, Warrior's Triumph and Zombie Madness) to unlock Absolute Powerforce. After buying 1 and a half box of those packs, I manage to form an X-Saber Beat Deck, the second deck after Tuner Beat, with the Saber Holes and Garsem and the DT X-Saber monsters. Unfortunately, I could not get a single Hyunlei.

Yugioh WC 2010 Reverse of Arcadia: Perfect Duel Game Guide

I just bought this book and 1 main reason was because I found out that only 1 Hellway Patrol is required in Infernity decks.

http://yugioh.wikia.com/wiki/Hellway_Patrol

The card art looks very cool with a character looking like the Marvel Super Hero, Ghost Rider. This book is a V-Jump publication so I guess the card cannot be used in Konami tournaments. The book content contains a short portion for the walkthrough and focuses more on the decklist of the opponents as well as all the cards featured in the game and which packs to get them.

Nintendo DS Yugioh World Championship 2010 Reverse of Arcadia

The game has a Duel Calculator mode that is very useful. There is English mode available in the game although the region, box, card and manual is in Japanese. It is still using the Sept 2009 Banlist but the new banlist is downloadable through WIFI.

My tip for beginning players: Buy the structure decks for staples like Heavy Storm and Mystical Space Typhoon and save your DP for buying newer packs. Every time you beat Nino in a structure deck duel, check the Card Shop as the deck may be available there. However, I think you are only allowed to buy one structure deck until you complete the game.