Brain Age Express: Math Nintendo DS Cheats

Destroy all enemies
During the Space mode of the Word Attack training game, if you press AYXB exactly in that order, all of the enemies on screen will be destroyed.

Challenge Mode
Get a Brain Age score of 20.

Slideshow mode
Successfully complete any three themes to unlock Slideshow mode.

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.

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.

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