Arctic Thunder

No drones mode:
Press Square(2), Circle(2), L1, R1, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

Expert mode:
Press Circle, Square, Circle(2), Square, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

All Randoms mode:
Press R1, R2, Square, Circle, R1, R2, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

All Atomic Snowballs mode:
Press Square(3), L1, Circle, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

All Grappling Hooks and Randoms mode:
Press Circle(2), L2, Circle(2), L1, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

All Rooster Tails mode:
Press R1, R2, L2, L1, Square, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

All Snow Bombs and Randoms mode:
Press Circle(2), R1, R2, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

All Boost mode:
Press Circle, R1(2), Circle, R2, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

Clone mode:
Press L1, L2(2), Circle, L1, Circle, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

Everyone invisible mode:
Press Square, Circle, Square, R2, Circle(2), Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

No power-ups mode:
Press Square(2), Circle, Square, R2, Square, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

Super boost wheelie mode:
Press Circle, L1, Square, R2, Square, L2, Start at the screen after startup (before choosing a player). Note: This has no effect in points races.

Mooing:
Enter MOO as your initials after a race.

Snowman:
Win gold medals on all twelve tracks in race to unlock the Snowman character.