For example, common activities include Calculations, where the user is presented with a list of single-operator math operations and the user uses the system's touch screen to write their answer to each question, and Stroop Test based on the Stroop effect, where players must say into the unit's microphone the color of the text of a color name that appears on the screen.

Nintendo Switch Brain Training for Adults), and as Dr Kawashima's Brain Training for Nintendo Switch for Europe and Australia, was released in Japan on December 27, 2019, and was released in Europe and Australia on January 3, 2020.

[1][2][3] The North American, European and Korean versions of the first two Brain Age titles featured a Sudoku mode.

When played with notification, the game allows the player to miss only five times before the puzzle is automatically ended before completion.

A DSiWare version of this game entitled Brain Age Express: Sudoku was released in the PAL regions on July 24, 2009, and in North America on August 17, 2009.,[4] but it was retired from the DSi Shop on June 19, 2015.

The first two games in the series reached a combined total of 33 million units sold globally.