--File--By-products of the popular video game Angry Birds are seen on display during a fair in Beijing, China, 23 September 2011. Finland-based Rovio Entertainment Ltd, the maker of the popular game Angry Birds, said it would expand its value-added chain to capture more business opportunities in China. Peter Vesterbacka, the co-founder of Rovio, said the company plans to build activity parks around China in the next few years as part of its global strategy and will also set up official stores in large cities for people to buy licensed Angry Birds products. Angry Birds launched its first activity park in Finland in April. Activity park manufacturer Lappset Group was assigned to work on the new projects in China. Vesterbacka said the activity parks would be different from traditional theme parks. The idea is to try to make people actively engaged in the game.
