The MSBL Update v1.2.0 [Softcobra.com].nsp file is a Nintendo Switch update package for Mario Strikers: Battle League, introducing characters Pauline and Diddy Kong, the Barrel gear set, and the Planetoid stadium. This NSP file format is commonly installed on modded consoles or emulators like Yuzu to update the game to version 1.2.0. For more details on installation methods, visit WiiDatabase .