At the Mode Select screen, select Password and enter the following.

Effect	Password
Round 2 - Sendai Hiland	JDKIE-268BZ-FENPY-GPK78-6L6AO
Round 3 - Fuji Speedway	FU2OJ-GVGPA-VRAV2-SUSQ1-M179N
Round 4 - Sportsland Sugo	QCXZ7-QLR84-PIDZQ-FSPT1-9VI9C
Round 5 - Mine Circuit	OO9ED-791QZ-DSJSL-TG010-5NMTK