Power Rangers were a toy phenomenon of the 1990s, coming hot on the heels of the popular TV programme that enthralled a whole generation of youngsters. It was popular, bright and colourful, and sometimes controversial, but nobody would’ve believed that it would still be a massive ‘toy and TV’ story more than twenty years later. But this is most certainly the case. I have a five-year old son who has been obsessed with Power Rangers Megaforce since he met a similarly obsessed boy on his first day in nursery. It is one of their fave playground games, they chose their characters and scenarios, and use their imaginations to create their…