Fitbox2-rhynexer-(usa)-nswtch-[base]-nsp-zipert... -

This naming convention is common in community-led archiving and helps identify the exact nature of the file:

: A common abbreviation for the Nintendo Switch platform. FITBOX2-RHYNEXER-(USA)-NSwTcH-[BASE]-NSP-Zipert...

: Players can choose from nine virtual trainers, including three new ones (Janice, Hiro, and Karen), and customize their outfits. This naming convention is common in community-led archiving

: Stands for Nintendo Submission Package , the standard digital file format used for games on the Switch eShop. including three new ones (Janice

: Uses the Joy-Con controllers to track movement. It features a Daily Workout mode tailored to personal fitness goals and a Free Training mode for customized intensity.