Sydney 2000

At the Main Menu, press following keys. If done correctly, you will hear a sound:
Full Stats - LEFT(x2), RIGHT(x2), UP, DOWN, LEFT, RIGHT, LEFT. Then select Olympic mode.
First in All Events - Triangle, Square, Circle, Square, X.
Gold Medals - Circle, X, Triangle, Square.

At the Event Selection screen, press following keys:
Gold in Sprint Event  - X(x3), Circle, X(x3).
Gold in Javelin Event - Circle, Square, X(x2).

 