The string you provided — "MK8-DLUXE-NSwTcH--BASE--NSP--eShop--Ziperto" — contains references to:
The official way to acquire the game is through the Nintendo eShop . The base game NSP file (often linked to sites like Ziperto) is a common format used in homebrew scenarios. MK8-DLUXE-NSwTcH--BASE--NSP--eShop--Ziperto.par...
Older "unpatched" V1 consoles use an exploit called Fusée Gelée through a physical RCM jig. MK8-DLUXE-NSwTcH--BASE--NSP--eShop--Ziperto.par...