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Full health
While playing a game, press R1, R2, L1, Circle, Left, Down, Right, Up, Left, Down, Right, Up. If you entered the code correctly, a message will appear. Note: If this code is enabled when there is damage on your car, the meter will be reset to zero without changing the visible effects of the damage. -From: DUKE44JB@aol.com
Armor
While playing a game, press R1, R2, L1, X, Left, Down, Right, Up, Left, Down, Right, Up. If you entered the code correctly, a message will appear. -From: DUKE44JB@aol.com
Weapons (tier 1)
While playing a game, press R1, R2, L1, R2, Left, Down, Right, Up, Left, Down, Right, Up. If you entered the code correctly, a message will appear. The least powerful weapons in each category will be unlocked. -From: DaPlantman17@cs.com and Natedawg2000@aol.com
Weapons (tier 2)
While playing a game, press R1, R2, L1, R2, Left, Down, Right, Up, Left, Down(2), Left. If you entered the code correctly, a message will appear. -From: epsilon@box.ms and DRAGSTAR...