英雄のカードを組み合わせて、自由にスキルを変更できる「英雄システム」
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Heroes Island<英雄島>is Designed and Developed by Shenzen Domain Network Software co., Ltd.
（C） 2007-2010 Shenzhen Domain Network Software Co, Ltd. All rights reserved.
Exclusively licensed to and published by GMO Games, Inc in Japan