Seven lives:
Highlight the "1P Play" selection at the mode selection screen and press Right(4). Then, highlight the "Tournament" selection and press Right. Then, highlight the "Course Edit" selection and press Left(2). Then, highlight the "Option" selection and press Left(6). Finally, highlight the "1P Play" selection again and press X. The sound of a cheer will confirm correct code entry.

Alternately, highlight "1 Play" at the mode selection screen. Then, press Right(4), Down(2), Right, Left(8). Return to the "1 Play" selection and begin game play.