Road Rash II.

 No.  Code  Effect
   1  RH6A-86YJ  MASTER CODE--MUST BE ENTERED
   2  8TST-ACD8  Player A starts game with $5,000 instead of $1,000
   3  7AST-AGD8  Player A starts game with $10,000
   4  2TST-AWD8  Player A starts game with $25,000
   5  VAST-BGD8  Player A starts game with $50,000
   6  CAST-ARM8  Player A starts game with $100,000
   7  ZAST-AC58  Player A starts game with $250,000
   8  AAST-AAD8  Player A starts game with no money
   9  8TTA-ACDW  Player B starts game with $5,000 instead of $1,000
 10  7ATA-AGDW  Player B starts game with $10,000
 11  2TTA-AWDW  Player B starts game with $25,000
 12  VATA-BGDW  Player B starts game with $50,000
 13  CATA-ARMW    Player B starts game with $100,000
 14  ZATA-AC5W  Player B starts game with $250,000
 15  AATA-AADW  Player B starts game with no money
 16  AEST-AAEG  Player A starts game with Panda 500 bike instead of Shuriken 400  
 17  AJST-AAEG  Player A starts game with Shuriken TT 250 bike
 18  ANST-AAEG  Player A starts game with Panda 900 bike
 19  ATST-AAEG  Player A starts game with Banzai 7.11 bike
 20  AYST-AAEG  Player A starts game with Banzai 600N bike
 21  A2ST-AAEG  Player A starts game with Banzai 750N bike
 22  A6ST-AAEG  Player A starts game with Shuriken 1000N bike
 23  BAST-AAEG  Player A starts game with Banzai 7.11N bike
 24  BEST-AAEG  Player A starts game with Diablo 1000N bike
 25  BJST-AAEG  Player A starts game with Panda 600 bike
 26  BNST-AAEG  Player A starts game with Banzai 600 bike
 27  BTST-AAEG  Player A starts game with Banzai 750 bike
 28  BYST-AAEG  Player A starts game with Shuriken 1000 bike
 29  B2ST-AAEG  Player A starts game with Diablo 1000 bike
 30  AETA-AAD4  Player B starts game with Panda 500 bike instead of Shuriken 400
 31  AJTA-AAD4  Player B starts game with Shuriken TT 250 bike
 32  ANTA-AAD4  Player B starts game with Panda 900 bike
 33  ATTA-AAD4  Player B starts game with Banzai 7.11 bike
 34  AYTA-AAD4  Player B starts game with Banzai 600N bike
 35  A2TA-AAD4  Player B starts game with Banzai 750N bike
 36  A6TA-AAD4  Player B starts game with Shuriken 1000N bike
 37  BATA-AAD4  Player B starts game with Banzai 7.11N bike
 38  BETA-AAD4  Player B starts game with Diablo 1000N bike
 39  BJTA-AAD4  Player B starts game with Panda 600 bike
 40  BNTA-AAD4  Player B starts game with Banzai 600 bike
 41  BTTA-AAD4  Player B starts game with Banzai 750 bike
 42  BYTA-AAD4  Player B starts game with Shuriken 1000 bike
 43  B2TA-AAD4  Player B starts game with Diablo 1000 bike
For Codes 44 thru 53, a player ordinarily must finish 3rd or better on each of the 5 tracks
to qualify for advancement to the next level.
These codes eliminate qualification requirements for particular tracks.
They are for Solo and Take Turn modes, and sometimes will not work after playing in
Split Screen or Mano-a-Mano modes.
Also it doesn't say you have qualified on the track selection screen, but the codes work.
 44  AEST-AAER  Player A pre-qualifies on Alaska track
 45  AEST-AAE0  Player A pre-qualifies on Hawaii track
 46  AEST-AAE8  Player A pre-qualifies on Tennessee track
 47  AEST-AAFG  Player A pre-qualifies on Arizona track
 48  AEST-AAFR  Player A pre-qualifies on Vermont track
 49  AETA-AAEC  Player B pre-qualifies on Alaska track
 50  AETA-AAEL  Player B pre-qualifies on Hawaii track
 51  AETA-AAEW  Player B pre-qualifies on Tennessee track
 52  AETA-AAE4  Player B pre-qualifies on Arizona track
 53  AETA-AAFC  Player B pre-qualifies on Vermont track