Pokemon Sun & Moon are huge success, which is no surprise given how many people love the Pokemon series (plus past games selling like hot-cakes on the GB, GBA, DS and 3DS) but the success of Sun & Moon really surprised Nintendo in NA.

After becoming the most pre-ordered video games in Nintendo history, Pokémon Sun and Pokémon Moon – the latest games in the wildly popular Pokémon franchise – have now become the fastest-selling games that Nintendo has ever launched in the Americas. In less than two weeks, Pokémon Sun and Pokémon Moon for the Nintendo 3DS family of systems sold a combined total of 3.7 million units. That’s an 85 percent increase over Pokémon X and Pokémon Y– the previous record holders for Nintendo’s fastest-selling games – during the same period when those games launched in 2013.

After becoming the most pre-ordered video games in Nintendo history, Pokémon Sun and Pokémon Moon – the latest games in the wildly popular Pokémon franchise – have now become the fastest-selling games that Nintendo has ever launched in the Americas. (Graphic: Business Wire)

“With these huge sales figures, Pokémon Sun and Pokémon Moon have proved themselves as two of the hottest video games to buy this holiday season,” said Doug Bowser, Nintendo of America’s Senior Vice President of Sales and Marketing. “With great reviews and outstanding fan response, these next iterations in the Pokémon series are sure to please any player in the family.”
All Pokémon-related software has sold more than 280 million units* worldwide since launching with the Pokémon Red Version and Pokémon Blue Versiongames in 1996. The Pokémon Red Version and Pokémon Blue Versiongames are both available for download in Nintendo eShop for Nintendo 3DS. Other notable launches in the Pokémon series include Pokémon X and Pokémon Y(15.64 million games sold globally life-to-date), Pokémon Omega Ruby and Pokémon Alpha Sapphire (13.18 million games sold globally life-to-date).

They were expected to do well, but they greatly exceeded expecations, which is great news for Nintendo. With high reviews for Sun & Moon being present and many enjoying the game, it is great seeing Pokemon continue being successful for Nintendo.
Source: Nintendo Press Release