Alternate athletes
Press [Up]x2, [Down]x2, [Left], [Right], [Left], [Right], [Circle], (X) at the event selection screen. A sound will confirm correct code entry. The Konami Man and alternate female athletes will be unlocked.
Pole vault
To unlock this event, get a gold medal in the first eight events and at least a silver medal in High Jump and Triple Jump. In the pole vault event, it is impossible to vault 7.00 meters. However you can vault 6.99 meters quite easily. Vault 5.50 on your first attempt, then when successfully cleared, attempt 6.00 meters, which is still an easy vault and puts you in first place. Finally, after you have successfully completed that, attempt 6.99 meters. You should be able to clear it rather easily if you are good. However, at 7.00 meters once you advance, the game will always stop your recovery bar at the same two spots around the stop arrow - a fraction of an inch before or slightly farther after the stop arrow.
Trap Shooting
Get a gold in all the events (Including High Jump, Triple Jump, and Vault) to unlock this event.
High Jump
Get a medal in all eight events in trial mode to unlock the High Jump. This event is almost identical to the Pole Vault. In this event, anything lower than a 43 degree angle will make your athlete jump with too much forward force, making him hit his head on the bar. Always start your jump before the middle of the jump zone and go for a 45 or 48 degree angle jump. It is fairly easy to get your power to glowing red in this event, so build it up.
Triple Jump
Get a medal in all eight events in trial mode to unlock the Triple Jump. This is one of the hardest events in the game. You must be able to tap the buttons with a lot of speed (as in the 100m Dash), have excellent reflexes (as in the Horizontal Bar Gymnastics), and a good eye for a line ( as in the High Jump and Long Jump). Get your power up to the orange-yellow color so you have good jump length. Make sure you tap the button very close to the white line for that extra little amount of length in your jump, and try to get a "Good" rating in the timing meter. If you are lucky, a "Great" might surprise you. However, you should not try to get that rating, because you will most likely foul.
Weightlifting
This is an event that requires some patience. You should not try the Clean or Jerk portion until your power is at least halfway inside the "OK" zone. Then, it is just timing. Do not overdo it on the hold for 3 part. If you try to get too fast in your button pressing, you are bound to press the same button twice and make your meter slip. If this happens when your already into the "OK" zone, you might slip out of it when you are still being counted off. The maximum weight may be impossible because the "OK" meter is very small in size, making it impossible to get the bar to lock inside it. Note: It is possible to get 280.0 kg, but it is very difficult.
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.