Cheat mode
Enter "PG7." As a password to unlock everything, with nothing completed.
All modes
Enter "QGF7" as a password to unlock training, career and tournament modes.
Super passwords
Enter "TH0D" as a password to have training level 1 completed.
Enter "THBH" as a password to have training level 2 completed.
Enter "SH6K" as a password to have training level 3 completed.
Enter "SHJN" as a password to have training level 4 completed.
Enter "SHWQ" as a password to have training level 5 completed.
Enter "TC4D" as a password to unlock more levels and the BMX Superbike.
Enter "SBPN" as a password to unlock most levels.
Enter "RHQT" as a password or "SBCT" to unlock career mode.
Enter "RBKZ" as a password to unlock some career mode levels.
Enter "PGT9" as a password to unlock all options (tournament, career, etc.) and everything completed except for four levels in tournament mode.
Enter "PK.4" to unlock all levels.