Darkness Neosphere can be obtained in the "World Championship Edition 9" booster pack.
Buy packs
armed dragon lv 10-World Championship Edition 4 pack dark armed dragon-Phantom Darkness pack
It is not available in Yu-Gi-Oh! World Championship 2010: Reverse of Arcadia.
Koumori Dragon can be obtained in the "World Championship Edition 6" booster pack.
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Armed Dragon LV7 appears as a Super Rare card in the "Soul of the Duelist" booster pack in "Yu-Gi-Oh! 5D's World Championship 2010: Reverse of Arcadia".
No, unfortunately cannot trade cards between different versions of the "World Championship" DS games.
Click on the "Related Link" to find the solutions to all Duel Puzzles (Arcadia Movement Headquarters, Bootleg, Download Puzzles).
Yu-Gi-Oh! 5D's Reverse of Arcadia: World Championship 2010 was released in February in Japan. It was then released in April in the United States and Europe.
Yes, Ojama Country exists in Yu-Gi-Oh! World Championship 2010: Reverse of Arcadia.
do battles/ time attack in old city at the computer in any duel runner shops
Use either the following website, or click on the "Related Link" below to find a complete list of Action Replay codes for the United States and the Japanese version of the game: http://www.konamiworldchampionship.com/apps/blog/show/2908849-ar-codes-for-yu-gi-oh-5d-s-reverse-of-arcadia-world-championship-2010