“Most remarkable is that Nintendo generated these revenues with hardware and full-game sales only. The contribution to revenue from its smart-device business (responsible for Nintendo’s mobile games) is negligible at 3 percent of all gaming revenues while subscription revenues and revenue from in-game transactions are almost non-existent.”
Market researcher Newzoo sees a very big opportunity for Nintendo in the year ahead, and they think big revenue can come from mobile games, microtransactions, and subscriptions. You can read more on their analysis here.