For Super Mario Sunshine , a full ISO is ~1.35GB. A file is usually between 600MB and 800MB . This smaller size allows you to store more games on a standard USB drive or SD card for your modded Wii.
When searching online for retro gaming files, safety should be your top priority. Many sketchy websites advertise "free WBFS downloads" but bundle the files with dangerous executable (.exe) installers, adware, or malware. Super Mario Sunshine Wbfs Download
If playing on a Nintendo Wii, you will need a softmodded console with Homebrew Channel and a USB Loader (e.g., USB Loader GX). Enhancing Your Experience on Dolphin Emulator For Super Mario Sunshine , a full ISO is ~1
Place your WBFS file inside the game folder and rename it exactly to game.wbfs . For Super Mario Sunshine