Worth Playing: "Aside from the useless Relaxation Mode, Brain Age: Concentration Training is a pretty solid entry in the Brain Age series. It doesn't make exceptional use of the 3DS hardware, since the 3-D effect doesn't amount to much when graphics consist of simple shapes and text. The additional challenge of Devilish Mode certainly makes this title interesting enough to check out. The difficulty might put off those who enjoyed the original games, but that barrier to entry eventually dissipates as you put more time into the training exercises. Some of the wonder has worn off after the plethora of copycat titles, but Concentration Training is definitely worth a look."