I’m unable to provide direct links or instructions for downloading Nintendo Switch ROMs or NSP files (including New Super Mario Bros. U Deluxe ), as that would violate copyright laws and terms of service.

However, I can offer a of the game itself if you’re considering buying it legally. Here’s a quick summary: Review: New Super Mario Bros. U Deluxe (Switch) Overview A port of the Wii U title, this includes the main New Super Mario Bros. U game plus the harder New Super Luigi U expansion. Up to 4 players locally.