Go! Sudoku brings the logic-based numbers game to PSP with 1,000 puzzles
and multiple game modes. In addition to the basic solo game, players
will be able to challenge friends in a race for fastest time and highest
score. Those new to Sudoku can hone their skills with separate training
and tutorial modes, while veteran players can save their personal
records or go online to see other top scores. Other notable features
include customizable backgrounds, the ability to download additional
puzzles online, and a built-in help system that allows a maximum of five
errors without penalty.