Brain Age 2: More Training in Minutes a Day (More Brain Training from Dr. Kawashima: How Old Is Your Brain? in Europe and Australia) is a Nintendo DS video game released in 2005 and 2007 from Nintendo. The game is a successor to Brain Age: Train Your Brain in Minutes a Day!, and like the game before it became very successful. The game's goal is to measure your brain, while yours is to get the lowest age possible, which is twenty. The game is commonly referred to as Brain Age 2 due to the long subtitle.
The game takes the basic concept of the original Brain Age and adds more activities, though also brings back some old ones as well. The popular sudoku game mode from the original makes a return as well, though the puzzles won't help in determining your overall brain age.
When the player first starts the game most of the training activities will just be question marks. After unlocking all of them there will still be one left down the bottom. Simply tap on it and a game called Germ Buster will appear. This is a remake of the NES classic Dr. Mario.