In a major policy shift, Nintendo Co. said it has partnered with mobile video game operator DeNA Co. to enter the smartphone game market.

During a joint news conference in Tokyo on Tuesday, the two firms said they will develop smartphone games using Nintendo¡¯s popular franchises, such as Super Mario Bros. and Pokemon to target the global market.

They will also create a membership-based service that will serve as a ¡°bridge¡± between a variety of devices, including computers, smartphones and Nintendo¡¯s 3DS portable game console.