Yo Ambulante have created one of the most fiendish puzzle games I’ve played in a while; Traffic Wonder HD will make your brain ache if you give it the chance. Featuring sixty levels of road networks and multi-coloured vehicles to get to their respective garages this is a lot of game for not a lot of cash. I should admit to a slight curl of the lip when I read that it comes with an “environmental message”, thankfully it’s a game mechanic and not eco-preaching awfulness. Starting off is simple and the in-game help is actually useful without being repetitive or annoying, there’s also a Tips & Tricks section which includes useful information on how the levels are designed.