Every class:
Submit the name ALL EVENTS in championship mode.

Every track:
Submit the name DIRT TRACKS in championship mode.

Big head mode:
Submit the name GROSSE TETE in championship mode.

Mirror tracks:
Submit the name OPPOSITE LOCK in championship mode. Choose the "Race Settings" selection under "Options" to access the "Mirror Mode" option. Or finish the open class, 125cc, 250cc, and 500cc championships.

Wrath Child Fox FMV sequence:
Submit the name LIVE ACTION in championship mode. Pick the EXTRAS option to access the new video. Finish the game in 125 cc, 250 cc and 500 cc modes.

Air tricks:

No-Hander: Push Up + R2.
No-Footer: Push Down + R2.
Nac-Nac To The Left Side: Push Left + R2.
Nac-Nac To The Right Side : Push Right + R2.
One-Footed Superman : Push Up + Circle.
Superman : Push Down + Circle.
No-Footed Can-Can : Push Left + Circle.
No-Handed Surfer: Push Circle + R2 + Up.
Cordova: Push Circle + R2 + Down.

Ground tricks:

One-Handed Pump: Push R2 + Up.
Point To The Crowd: Push L2 + Left.