With that said, there's not much you can really say about Sudoku the Puzzle Game Collection as it has definitely been made for fans of Sudoku or similar puzzle games. Even if you are not a fan or have never tried Sudoku before, the games tutorial is actually quite good and will teach you the basics of navigating the numbers for the various puzzles.
Nikoli's Pencil Puzzle is a fine game but seems to be an ill fit for the Nintendo 3DS platform. The 3-D effect is gimmicky at best, and with most of the images on the upper screen being either useless or not amusing, you won't care about them.
The gameplay is solid--it features some nice options and delivers on its promise of simple cerebral diversions--but the presentation is pretty darn dull. [Oct 2011, p.84]
While Nikoli's only contains four activities, they're fun and diverse enough to make this a good collection, and with 600 puzzles total, they'll keep you satisfied for a long time.
Given it completely fails to use any of the 3DS functionality in any meaningful way, chances are good you'd get a better experience with a DS game, too.