Cheats & Cheat Codes The Relic Racers can ONLY be unlocked in Adventure Mode. Code: Description: Sapphire Relic Collect a cup for each track in its world. Now yo ucan play the Sapphire race. Platinum Relic Beat the Gold Relic Race time. Gold Relic Beat the Sapphire Relic Race time. Find this article at: http://www.strategyinformer.com/ps2/crashnitrokart/cheats.html