You do need to search for risky "NSP" files or unofficial mirrors. Downloading pirated software can expose your console to malware or lead to account bans. Instead, you can download the game legally and for free directly from the Nintendo eShop :
The safest and easiest way to get the game is directly through the : Fall Guys Switch NSP Download gratis
Mediatonic and Epic Games made Fall Guys free-to-play on the Nintendo eShop. This means you do need to pay money to download the base game legally. You do need to search for risky "NSP"
While searching for a "gratis" NSP download might seem appealing, there are significant downsides compared to the official free version: This means you do need to pay money
Fall Guys offers a high level of replayability, with procedurally generated levels and randomized obstacles. The game also features a leveling system, allowing players to unlock new costumes and other customization options.