The Where’s Wally series of books are an icon of children’s entertainment, and this iPhone app brings the fun and frustration of searching for the stripy shirted hero to the mobile screen.

The potential problem of making the transition from the printed page to the pixelated screen has been overcome well. Individual game worlds are large, but when hunting for a particular object, you are limited to searching within a pre-defined area – helping to avoid lengthy searches.

Wally’s trusty dog is on hand to offer help and advice if things get too tricky and the game can be played in easy and normal modes, making it suitable for children and adults alike. With a series of worlds to work your way through, and all manner of crazy characters to hunt down, Where’s Wally has real longevity.

Whether you are looking to relive your childhood, or just want a way to pass a little time during a train journey, Where’s Wally is challenging and addictive enough to keep you entertained. Satisfying and frustrating in equal measure, this is just how puzzle games should be.

Note that this iPhone/iPad app is 138MB.