This is a tool-assisted speedrun. For more information, see http://tasvideos.org/1734M.html
Brain Age (also known as Dr. Kawashima's Brain Training) is a puzzle game designed on the premise of exercising your brain. In this run, for example, the idea is to solve a series of simple mathematical puzzles.
And yet, the answers given... are not exactly what you'd expect.
The same author of the previous run brings you a set of 51 new ... answers, with extra time taken to provide you,