International Track And Field 2000 Cheats

Alternate athletes:
In the event selection prompt, push Up(2), Down(2), Left, Right, Left, Right, Circle, X. You will hear a sound if you have entered the code correctly. The Konami Man and alternate female athletes will be unlocked.

Trap Shooting:
By getting a gold in every event you will unlock this event. You must get a gold medal in every event including the unlockable ones.

Triple Jump:
By getting a medal in every one of the eight events in trial mode you will unlock the Triple Jump. 

Blimp:
Finish the 100 meter dash with a time that has the same number in the last and second to last place.

Mole:
Finish the long jump with a distance that has the same number in all three places.