China has begun drafting new rules for the sale of video game consoles and games in the country, following the nation's announcement last week that its 14-year ban had been lifted.
Cai Wu, head of China's Ministry of Culture, said that the rules are being written as quickly as possible, though no specific timeline for their publication was provided.
"Things that are hostile to China, or not in conformity with the outlook of China's government, won't be allowed" under the rules of the free-trade zone, Cai said. "We want to open the window a crack to get some fresh air, but we still need a screen to block the flies and mosquitoes."
One game that is likely to be blocked is Battlefield 4, which China labeled a threat to national security late last month.
China originally banned game consoles in 2000 , following concerns about potential harm to the physical and mental development of children. Nintendo and Ubisoft shares surged following China's announcement that it would lift the ban, but any long-term prosperity remains to be seen.
Representatives for the Sony and Nintendo told Bloomberg that they are examining their opportunities for how best to take advantage of the new market. Meanwhile, Microsoft and Shanghai-based BestTV announced a multi-million dollar partnership in September to leverage the new rules.