Wii games are rendered in standard definition, usually 480p, which is a significant downgrade from 720p or 1080p.
Some community patches modify the ISO directly for better FPS or removed effects. call of duty modern warfare 2 wii iso better
When people search for a "better" MW2 Wii ISO, they are often looking for modified versions of Call of Duty: Modern Warfare Reflex (the ported COD4) or Call of Duty: Modern Warfare 3 (which did have a Wii release) that have been modified to feel, look, or play like Modern Warfare 2 . Wii games are rendered in standard definition, usually
[COD] Anyone find it odd how they put COD 4 and MW3 on the Wii, but not MW2, arguably the most important game in the OG MW series and has an interconnected story to both games but not MW2