Finish in the top 3 in the first eight events in trial mode to unlock the high jump and triple jump events.

Trap shooting

Place gold in all eight regular events and the three bonus events to unlock the trap shooting event.

Pole vault

Enter "L.A." as a case-sensitive name in championship mode to unlock the pole vault event. If the code was entered in correctly, you will hear a sound. Alternately, place gold in all eight regular events and at least silver in the high jump and triple jump events. 

Extra events

Enter "Montreal" as a case-sensitive name in championship mode to unlock bonus events such as the pole vault. If the code was entered in correctly, you will hear a sound.