Nintendo has announced that Brain Age: Train Your Brain in Minutes a Day has sold over 4 million units worldwide.
After a successful Japanese launch with over 3 million units sold, Brain Age for the Nintendo DS has gone on to sell an additional 600,000 units in the Americas and 500,000 units in Europe. The success of Brain Age and the strong showing for the Nintendo Wii at E3 2006 has prompted Nintendo stock prices to climb in the past three months. They are currently trading at $22.90 compared to roughly $13.00 per share one year ago today.
An English sequel to the game has yet to be announced.