Solving simple calculations and reading out loud activate the brain! These activities are included in this software, as well as many other training programs for your brain. I designed this software to include only exercises which aid your brain. Modern imaging tools suggest that they are all quite effective! And now, it's time to start your training!"
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- Bragging Rights Reward: the stamps, after you've unlocked everything. You get one for each day you do a training exercise, and it gets bigger if you do three in a day.
- But Thou Must: In Concentration Training, when you start "Devilish Training" mode for the first time, Dr. Kawashima asks if you are ready for the training. "Yes!" and "No" buttons appear on the touch screen, but the "No" button is smaller, and attempting to touch it causes it to move, eventually hiding behind the "Yes!" button.
- Declarative Finger: Concentration Training adds hands for Dr. Kawashima to use when needed, thus this trope tends to happen often.
- Denser and Wackier: Concentration Training is a bit quirkier than the first two games.
- Easter Egg: Brain Age 2 has a game that is unlabeled until you click on the bar it's under. And saying either "Doctor Ryuta Kawashima" or Brain Age 2 makes the title screen of that game much more interesting.
- If you say "Hello" to the good doctor, he will smile and nod back. If you say "Glasses glasses!", his glasses will fly off his face and he will frantically look for them.
- In Concentration Training, pressing L or R at the title screen will toss soybeans at the doctor's headnote . You can rotate his head using the gyroscope and hit different parts of his head to yield different reactions. If you get a soybean up each of his nostrils at the same time, he'll congratulate you for it.
- Game-Breaking Bug: the first Brain Age has a game that is supposed to test how fast you read. But the DS has no way to test if you are reading it before you move on — there's no reading comprehension test. It will kick you out if you go to the next page too quickly (claiming "you were reading too fast I couldn't do the fancy brain measure stuff"), but then some people actually do read that fast... Similarly, the "speed counting" test doesn't have any way to make sure you actually said the numbers (though, again, it tries).
- Game Within a Game: In addition to Sodoku, Virus Buster, and Blob Blast, the game also includes three variations of Solitaire (Klondike, Spider and Golf) and Shisen-sho Mahjong solitaire as part of its Brain Training series of activities.
- Minigame Game: Especially the third game.
- New Technology Is Evil: Brain Age: Concentration Training opens with a lecture that information-driven technology such as smartphones, tablets, and laptops cause poor concentration, which Dr. Kawashima calls "information addiction". Of course, he adds that technology isn't the only thing that affects concentration negatively.
- Nintendo Hard: from Brain Age 2, the Hard difficulty of "Sign Finder," in which you are to enter the correct signs into a math problem — on Hard, you have to enter three signs, and the problems get correspondingly interesting for the mathematically inept. (It's hard to fill in the sign fast if you have no clue what the answer is.)
- Also, "Word Blend," which (after the first round) has you fill in multiple spoken words spoken at the same time into the blanks correctly. You get more than one chance per round, but only the first one counts for the scoring. And since the DS is a portable system, its speaker separation is lousy...
- Devilish Training is supposed to be a collection of hard challenges.
- Shout-Out: One of the phrases in the Syllable counter is "Thank you, Mario, but Your Princess Is in Another Castle."
- Training from Hell: Devilish Training