Cheat Codes for Tony Hawk's Underground

Platform: GameCube

3 Codes Found 
  1. (m)

    JB53-27ZF-E93ER
    3XZC-ZHMZ-NN3HK
  2. Massive Score in Challenges

    2YAH-N24J-0BHN5
    5DYB-EH2Q-MPT2N
  3. Moon Jump (Hold DPad Up)

    Z519-KQ4J-4JXQG
    21CX-086A-WVT3W
    7CU1-25DC-3NJEK