The second entry in Level-5's Atamari series. It is based upon the Atama no Taisou series of puzzle books, which is comprised of 23 books and has sold over 12 million copies.
The second entry in Level-5's Atamari series. It is based upon the Atama no Taisou series of puzzle books, which is comprised of 23 books and has sold over 12 million copies.