Brain Age Express (known in Japan as Chotto Brain Training and in Europe and Australia as A Little Bit of... Dr Kawashima's Brain Training) are three educational puzzle video games developed by Nintendo for the Nintendo DSi's DSiWare download service. They are the third series of games in the Brain Age series, and are repackaged versions of both Brain Age: Train Your Brain in Minutes a Day! and Brain Age 2: More Training in Minutes a Day! games, featuring both old and new puzzles.