Go! Sudoku includes a bunch of challenging Sudoku puzzles that aren't currently on the rise worldwide. For those of you who aren't familiar, Sudoku is a puzzle game in which you need to assign numbers to the 81 grids. The goal of the game is to fill up every square, row, and column with the numbers one through nine without any overlapping. If you're lucky enough you can find these puzzles in your local newspaper, but for the rest of us there's a digital PSP version.

Although it isn't groundbreaking and is basically the same game that anybody without a PSP can play, it has enough bonus features to make it a worthy purchase for puzzle addicts. With bonuses such as wireless multiplayer options along with an upbeat musical and graphical presentation, this game still has plenty of value over it's 1,000 include challenges. Combine that with downloadable puzzle packs and you've got a game that will last you a while. Basically, if you just can't get enough of Sudoku puzzles then this is for you, but don't expect Go! Sudoku to offer anything innovative.