Summary: I liked this but I have trouble getting past some games when I can't finish them. When doing tutorial I was able to do many games but when I was in regular game mode, and could not figure out a puzzle, I can't move on to the next puzzle. This does get frustrating and makes it hard for me to pick up again to try it. My one son couldn't even help me get past on one puzzle. I can't seem to get the "answer" button to help me, however.
Summary: This collection is a little gem. I picked it up on a hunch and it proved to be a great investment. Besides the better known Sudoku and Kakuro puzzles, this also includes Slitherlink, Nurikabe, and Light On. Slitherlink is about drawing a single contorted loop on a grill given some hints about how many parts of the loop are adjacent to some grill elements.
Conclusion: This is a good game to get you familiar with japanese number puzzles but can get repetative once you have completed a few, although once you have completed 50 suduko you unlock 50 more! The built in extra games such as collecting parts of pics for screensavers and suduko puzzles to build are good but could do with a bit more variety or secret ones to unlock. All in all a good game with enough games to keep you busy.