This game is also available on Wii.
Retro Game Cheats for Mario & Sonic at the Olympic Games (Nintendo DS)
Effect: Unlock Amy Emblem.
Effect: get the friendly emblem
Effect: Unlock Aquatics Champs Emblem.
Effect: Unlock Bouncing Emblem.
Effect: get more events
When:
during the game
How:
play circut mode over and over until you got the events you need
Submitted By:
Effect: Unlock Bowser Emblem.
Effect: Unlock Blaze Emblem.