Beyblade battles drive up sales at Hong Kong malls, but how long will the trend last?

The sharp clatter of spinning metal tops, cheers, sighs of frustration and shouts of “Three, two, one … Go shoot!” echo across a shopping centre in Hong Kong’s New Territories on a weekday. Dish-shaped plastic battle arenas known as “Beystadiums” have been set up not only in Tuen Mun Tow…