Cheat Codes for Grand Prix Challenge

Game Platform

Platform: Action Replay MAX

4 Codes Found 
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  1. (M)
    NKZ1-ZZCC-6A05A
    DR1C-KFM5-TK27N
    PX50-05M6-GC9Q9
  2. 1 Lap Races In Quick Race Mode
    GDQH-7HF5-EJYXA
    VUMU-6AZ0-TKTQ0
  3. 1 Lap Races In Grand Prix Mode
    TZBB-KK4N-BQETB
    YXPC-7CAB-W5XVV
  4. 1 Lap Races In Championship Mode
    5WB0-5WYG-2GA8W
    B6AP-WGAU-YAEFQ