The term "NSP" refers to digital installation packages for the Switch. Seeking a "descarga gratuita" (free download) of these files from unofficial sources carries severe risks:
"Exclusive free download" sites are notorious for hiding malicious software inside game files. mortal kombat 11 switch nsp descarga gratuita exclusive
The best way to experience Mortal Kombat 11 on the go without risking your console or your digital security is through official channels. The term "NSP" refers to digital installation packages