In terms of what's new in World Mosaics 3, there isn't much. This game boasts more picross puzzles than its predecessors (125 to be exact, plus 100 extra puzzles that are unlocked when you finish the second story). Graphics are improved over the original game; music too. Each background is themed to the particular story; in the Hansel & Gretel levels you'll see a witch's gnarled hands holding a plate of gingerbread men over a fiery oven, for example. But all this is really just window dressing for what is essentially the exact same experience you've already had in the first two World Mosaics games.