Wii Fit Plus is the definitive enhanced version of the original fitness phenomenon for the Wii console. While the "ISO" refers to the digital disk image used in emulators like the Dolphin Emulator

: You can convert standard ISOs into .RVZ format to save space while keeping 100% of the game data intact. Wii Fit Plus | Wii Sports Wiki | Fandom

: On the Dolphin Emulator , you can upscale the internal resolution to 4K, add anti-aliasing, and use widescreen hacks to make the 480p game look modern.

: The "My Wii Fit Plus" section allows you to create custom workout programs or choose routines focused on specific goals like "Toning" or "Health".

Pick 1, 2, or 3 and I’ll proceed.

: Play in 1080p or 4K, significantly improving the 480p graphics of the original Wii.