* Nintendo Switch: The base model doesn't come with any games pre-installed. You'll need to purchase them separately. However, the Nintendo Switch Lite comes with a pre-installed copy of Nintendo Switch Sports.
* Nintendo 3DS: Most Nintendo 3DS models come pre-installed with a demo version of a game like Super Mario 3D Land or Luigi's Mansion: Dark Moon, and some models might have a few more demo games.
* Nintendo DS: Most Nintendo DS models also came with a few pre-installed demo games, and occasionally a full game.
* Wii U: The Wii U didn't come with any pre-installed games.
* Wii: The Wii came with a pre-installed copy of Wii Sports.
So, to know for sure, check the specific model of Nintendo console you're interested in. It's best to check the product description on the Nintendo website or at a retailer before purchasing.