All Riders:
     Select  Freestyle, Sierra, Time Trial. Set the laps to 6 and turn
off  all  Blades.  Then put Edge as Blade 2. Start and pause gameplay,
then  quit.  At  the Race Configuration screen, press Triangle. At the
Rider  Selection  screen,  press Triangle. Now quickly press Up, Down,
L1,  R2,  R1,  L2, Circle, Select. If done correctly, the message "All
Riders Enabled" will appear near the lower right corner.