While not the Japanese-exclusive Animal Crossing e+ (a GameCube update), the latest patch adds missing holiday text that was previously left as garbled Japanese.
She nearly laughed. Animal Crossing for the Nintendo 64 — Dōbutsu no Mori — was released only in Japan in 2001. Its data was small, quaint, and fully documented. No updates existed. No patches. No “v99.” The game was frozen in time, a fossil of simpler days. animal crossing nintendo 64 rom upd
If your goal is or seeing the franchise's origins, seek the Dōbutsu no Mori+ (N64) ROM, but be prepared to navigate Japanese text menus or unstable fan-translation patches. While not the Japanese-exclusive Animal Crossing e+ (a