Challenge Mode
     Get a Brain Age score of 20.



Unlockable Games and Modes
     You can get 1 stamp every day for doing a training minigame. Note
that to play Virus Buster, you must have earned a stamp for that day.

Battle Mode for Sum Totaled Minigame    Get 5 Stamps

By the Numbers Minigame                 Get 1 Stamp

Calculations X 100 Hard Mode            Get 23 Stamps

Change Maker Minigame                   Get 10 Stamps

Change Pin Tip Mode                     Get 17 Stamps

Comment Settings                        Get 15 Stamps

Multi Tasker Hard Mode                  Get 30 Stamps

Multi Tasker Minigame                   Get 25 Stamps

Slideshow Mode                          Complete any 3 Themes

Stamp Design Mode                       Get 3 Stamps

Tips Mode                               Get 7 Stamps

Triangle Math Hard Mode                 Get 28 Stamps

Triangle Minigame                       Get 20 Stamps

Virus Buster Minigame                   Get 12 Stamps



Make Ruyta Kawashima's Head Triplicate
     When  you're in the Main Menu of the game, speak to Ryuta through
the Microphone of your DS and say "Brain" "Age" "Express" in that same
order.  When you say the three words right he'll get surprised and his
head will triplicate.



Unlockable Slideshow Mode
     Complete 3 Themes to unlock Slideshow Mode.