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.
Play Brain Trainer
Another Dr. Kawashima's Brain Train Game: in this Nintendo DS brain training game demo you must match the complex symbols. By doing this you will train your brain by playing games.