This Nintendo DS game is tested and authentic, guaranteed to provide hours of entertainment. It features puzzles in various difficulty levels that will challenge the mind of players of all ages. With a region-free code, it can be enjoyed anywhere in the world. The game was released in Japan in 2006 and is rated E for Everyone. The unit type is a unit, and the game was published by Nintendo. This Sudoku Gridmaster game is perfect for puzzle lovers who are looking for a fun and exciting game to play on their Nintendo DS.