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.
Unlockable How to Unlock 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.
Contributed By: Metal_Cyborg.
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