The European/PAL version of the game has a different intro theme to other versions.
Metal Mario is an exclusive unlockable character in the international release of Mario Golf. In the Japanese version, he is absent from the game.
On the Tournament Mode selection screen, the Boo Classic tournament is misspelled as "Boo Clasic".
Wario is wearing pink colored shoes in-game instead of the usual green which he's seen with in most games and even in the game's artwork.