There have been many brain training titles on the Nintendo DS console, both for adults and for younger gamers. The success of Dr. Kawashima’s Brain Training: How Old Is Your Brain? cannot be ignored, but it is a market that has since become saturated. Fewer and fewer titles have been launched in recent times, and with the advent of the Nintendo 3DS development of many of these games will be shifted to the new format. This leaves the door wide open for Junior Brain Trainer: Maths Edition from Uacari, a developer that seemingly specialises in software for younger children on the Nintendo DS.