This page contains Brain Age Express: Math Unlockables for Nintendo DS called "Unlock Challenge Mode" and has been posted or updated on May 1, 2010 by Spartan 121. Let us know what you think of this Unlockable by thumbs voting.
Unlock Challenge Mode
Any time after the initial Brain Age Check, if you obtain a Brain Age score of 20, you will unlock the Challenge Mode. NOTE: This is MUCH harder than what you normally do in Training.
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