Press Left, Right, Start, C, A on controller two at the title screen. The phrase "99 Continues" will appear in the corner to confirm correct code entry.
99 lives
Press Up, Left, C, B, A on controller two at the title screen.
Level skip
Press Start, C, B, A, Right, Left, Right, Left on controller two at the title screen. The phrase "Level Skip" will appear in the corner to confirm correct code entry. Then, pause game play and press C to jump to the next level.
Snowboarding sequence
Press A, B, C, Down, Up on controller two at the title screen. The word "Snowboarding" will appear in the corner to confirm correct code entry.
Snowboarding time trial
Press C, B, A, Up, Down, Left, Right, Start on controller two at the title screen. Then, use the "Special" selection on the option screen.
99 continues...