Why Sonc Advance has japanese translates?

[JimPlayz912]

On top of every zone it writes the zone name in japanese!

[Ioshyriku]

It is a Japanese game.

[MegaGenesis]

I always found it strange everytime i played Advance 1, although it never really bugged me. Guess it was a choice, every other text was translated and they just had to remove the japanese text from the Zones' title cards. Who knows? Sonic Advance was one of the earliest GBA games, maybe it had a rushed western release.