There is only one true way to play Sudoku. You have to go balls to the wall and use a pen. Only the weak and feeble use pencils or gadgets like this. This plug'n'play Sudoku adapter allows any television to be turned into a Sudoku'ing machine. It has millions of puzzles, multiple difficulty modes, hints and error checks—once again, for the weak and feeble.
Why would you pay $30 for this when you can do the free ones that are in every single newspaper and scattered throughout the Internet? Because you are a filthy consumer whore and you know it.