This page contains Jump! Ultimate Stars Codes for Nintendo DS called "Double Gems" and has been posted or updated on May 7, 2008 by waivyves. Let us know what you think of this Code by thumbs voting.
During a WiFi Match, at the deck selection screen, enter: Up, Up, Down, Down, Left, Right, Left, Right, B, A, Select, Start. After the match is finished, you will receive double the amount of gems.
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