Mario Strikers is a series of sports games developed by Next Level Games and published by Nintendo for various Nintendo consoles. The series combines elements of sports games, such as soccer and hockey, with the popular Mario franchise. The games are known for their fast-paced action, colorful graphics, and fun gameplay.

The Mario Strikers NSP file refers to the digital version of the game, Mario Strikers: Battle League, which was released on the Nintendo eShop for the Nintendo Switch console. The NSP file contains the game's data, including its assets, executable code, and metadata.

The NSP file format is used on the Nintendo Switch console, and it's the standard format for digital game distribution on the Nintendo eShop. NSP files are encrypted and can only be decrypted and read by the Nintendo Switch console or using specialized tools.