Over time the games' presentation has become more elaborate (while still maintaining an art style that looks like a lost episode of Around the World with Willy Fog) and many of the puzzles more interactive and video-gamey. Although sadly Akira Tago, the man behind many of the puzzles in the original games, has passed away and there is a sense that his successors sometimes lack the same level of inspiration and logic-based slight of hand.
The overall standard of the puzzles is still very good though and Layton's Mystery Journey has hundreds in total. These encompass the usual range of maths conundrums, logic puzzles, sliding block games, board game variants, pattern-matching brainteasers, word games, and optical illusions. Some are just minor variations on each other, particularly the optional ones outside of the main story path, but the amount of variety is still impressive.