Velocitar Track:
To access the velocitar track successfully complete race mode with a Bronze or better finish.

Cyclone Weapons Power-up:
To get the Cyclone weapons Power-up complete the Weapons Challenge mode with a Bronze or
better. This power-up will double the damage caused by your weapons. 

Piranha II Ship:
In order to gain access to the Piranha II ship complete Time Challenge Mode with a Bronze or
better. 

Super-Combo Challenge Mode:
Complete all three challenge modes successfully to access the Super-Combo challenge.

                             Game Shark Codes 

     Infinite Check Point Time - 810CDE92 0960 
     Infinite Shield - 8109BCEE 0000 
     One Lap To Race - D01BC502 0001 or 811BC502 0300 
     No Laps To Race - D01BC502 0000 or 811BC502 0300 
     Unlock Velocitar Track - 80093249 0001 
     Unlock Piranha II Track - 800933C9 0001 
     Unlock Super Combo Challenge Tracks - 8009351D 0000 

                Press GS Button to Unlock Race Challenge Tracks

     Challenge 2 - 0001 
     Challenge 3 - 88093609 0001 
     Challenge 4 - 88093649 0001 
     Challenge 5 - 88093689 0001 
     Challenge 6 - 880936C9 0001 
     Gold Challenge - 8809371D 0000 

              Press GS Button to Unlock Time Trial Challenge Tracks

     Challenge 2 - 88093E49 0001 
     Challenge 3 - 88093E89 0001 
     Challenge 4 - 88093EC9 0001 
     Challenge 5 - 88093F09 0001 
     Challenge 6 - 88093F49 0001 
     Gold Challenge - 88093F9D 0000 

               Press GS Button to Unlock Weapon Challenge Tracks

     Challenge 2 - 88094249 0001 
     Challenge 3 - 88094289 0001 
     Challenge 4 - 880942C9 0001 
     Challenge 5 - 88094309 0001 
     Challenge 6 - 88094349 0001 
     Gold Challenge - 8809439D 0000 

             Press GS Button to Unlock Super Combo Challenge Tracks

     Challenge 2 - 88094649 0001 
     Challenge 3 - 88094689 0001 
     Challenge 4 - 880946C9 0001 
     Challenge 5 - 88094709 0001 
     Challenge 6 - 88094749 0001 
     Gold Challenge - 8809479D 0000 

             Press GS Button For Challenge Levels Medal Won Modifier

     Challenge 1 - 88094C0C 00?? 
     Challenge 2 - 88094C38 00?? 
     Challenge 3 - 88094C64 00?? 
     Challenge 4 - 88094C90 00?? 
     Challenge 5 - 88094CBC 00?? 
     Challenge 6 - 88094CE8 00?? 
     Gold Challenge - 88094D14 00?? 

              Press GS Button For Time Trial Challenge Levels Medal

     Won Modifier 
     Challenge 1 - 88094D40 00?? 
     Challenge 2 - 88094D6C 00?? 
     Challenge 3 - 88094D98 00?? 
     Challenge 4 - 88094DC4 00?? 
     Challenge 5 - 88094DF0 00?? 
     Challenge 6 - 88094E1C 00?? 
     Gold Challenge - 88094E49 00?? 

             Press GS Button For Weapon Challenge Levels Medal Won

     Modifier 
     Challenge 1 - 88094E74 00?? 
     Challenge 2 - 88094EA0 00?? 
     Challenge 3 - 88094ECC 00?? 
     Challenge 4 - 88094EF8 00?? 
     Challenge 5 - 88094F24 00?? 
     Challenge 6 - 88094F50 00?? 
     Gold Challenge - 88094F7D 00?? 

             Press GS Button For Super Combo Challenge Levels Medal

     Won Modifier 
     Challenge 1 - 88094FA8 00?? 
     Challenge 2 - 88094FD4 00?? 
     Challenge 3 - 88095000 00?? 
     Challenge 4 - 8809502C 00?? 
     Challenge 5 - 88095058 00?? 
     Challenge 6 - 88095084 00?? 
     Gold Challenge - 880950B0 00?? 

             Quantity Digits to Accompany Medal Won Modifier Codes

     00 - Nothing 
     01 - Bronze Medal 
     02 - Silver Medal 
     03 - Gold Medal