Here's a Look at the 3DS' Devilish New Take on Brain Age

When first mentioned back in February, Nintendo was said to be working on Oni Tore, or "Demon Training"—a quiz that tested the ability to work on problems from memory. During the Nintendo Direct showcase on Friday, the company offered a look at one of its minigames in action, Oni Keisan, or "Demon Calculation." » 6/23/12 5:00pm 6/23/12 5:00pm