It's crucial to note that while NSP and XCI files can provide access to games for those who cannot afford them or prefer a backup, they exist in a gray area of legality. Players should be aware of their local laws and the terms of service of their console. For those choosing to play through NSP or XCI files, it's essential to stay updated on any new developments and tools released by the community.

This article explores the necessity of game updates, how to apply them to your backups, and why keeping your Super Mario Bros. Wonder installation updated is essential for the best experience. Why You Need the Super Mario Bros. Wonder Update (NSP/XCI)

File sizes are usually larger because they include unused "padding" from the original cartridge size. NSP (eShop Dump): A digital copy as it appears on the Nintendo eShop.

– Groups sometimes release a “fixed” NSP/XCI to address issues like:

If your download is 4.5 GB and labeled “update,” you were tricked into downloading the base game again.