How to Install NSP Files from SD card to the Nintendo Switch using Tinfoil!!!
If you have downloaded the archive, note that it contains an .NSP file, which is the standard format for Nintendo Switch digital software. Boxer (NSP)(eShop).rar
The game has been described by critics as feeling like a "junior programming project" or a "homework assignment" due to its lack of complexity. How to Install NSP Files from SD card