Nintendo - Nintendo DS

"Animal Crossing - Wild World.zip" and "Welcome to Animal Crossing - Wild World (Rev 1).zip": the game is the same (ROMs are not tho), do we really need two versions?

https://gamefaqs.gamespot.com/boards/920786-animal-crossing-wild-world/46512280
"At some point (in 2006 or 2007, no one knows for sure), NIntendo started releasing ACWW in North America and Japan with different coding. No differences in gameplay have been detected. Different coding, however, means "different" cheating devices/codes."