Play Brain Train
Play Dr. Kawashima's Brain Training: Brain Age Check! This is a free demo version of one of the Nintendo DS Brain Train games. This Flash version is about math. Example: 2 + _ = 9.
Play Kawashima Brain Training
Play Nintendo DS Brain Training games made by Dr. Kawashima. This is a free playable brain train game. Check your brain age or train your brain. In this brain training demo you must match some symbols.
Play The Ultimate Idiot Test
How smart are you? More importantly, how dumb are your friends? Take the super-scientific Idiot Test and find out once and for all! Remember, the Idiot Test was put together by people much smarter than you.