All courses
Hold [L1] + [L2] + [R1] + [R2]
when the phrase "Push Start Button" appears at the title
screen. A sound will confirm this portion of the code. Immediately
hold [Down] + [X], while keeping the previous buttons
held. A sound will confirm this portion of the code. Press [Start],
while keeping the previous buttons held. The course selection
screen will appear.
All cars
Hold [L1] + [L2] + [R1] + [R2]
when the phrase "Push Start Button" appears at the title
screen. A sound will confirm this portion of the code. Immediately
hold [Up] + [Triangle], while keeping the previous buttons
held. A sound will confirm this portion of the code. Press [Start],
while keeping the previous buttons held.
Drive a sheep
Defeat all opponents in "School" mode. Then
select "School" mode free trial. Hold [L2] + [R1]
before entering the Zero 4 (1-1) course to use the Sheep.