Corrected sentence: Discover new themes on every page - from animals and city transport to the world around us - with a fun 'find-me' game.
Why this is better: The sentence now reads more clearly: it tells what to do first (discover new themes) and then gives examples. 'Find-me game' is shown as the game's name.
Short version for a 6-year-old: Find animals, city vehicles, and things from around the world on every page!