Nintendo switch夢遊

"Nintendo Switch 夢遊" is not a game or product from Nintendo. It's possible that you're referring to "Nintendo Switch 夢をかなえるゾウ" (Nintendo Switch 實現夢想的象), which is a Japanese phrase that describes the Nintendo Switch console. The phrase "夢をかなえるゾウ" (yume wo kanaeru zou) means "an elephant that fulfills dreams" in English. This phrase is used in the marketing of the Nintendo Switch in Japan, emphasizing the console's ability to bring people's gaming dreams to life with its portability and versatility.