This will come naturally but if your in a rush.
Settings:
1. Multiplayer
2. Race
3. Region = Desert
4. Level = Nacho farm
5. Rounds to win = 1
6. Stampedes = CRAZY
7. Deadly stampede = Off
8. Add a 2nd controller (guest is fine)
9. Push left on the left analogue stick on both controllers to sit in the first patch of golden pinatas.
10. Pick up dynamite (if you dont, discard with
)
11. When stampede arrives throw dynamite with
in front of them
12. Rinse & repeat