Twisted Edge Extreme Snowboarding 

Cheat mode 
Enter the sound options menu and adjust the following settings as indicated. 
Then, highlight the "SFX Vol." option and press the indicated button(s) to 
activate the corresponding cheat function. Note: Only a single code may be 
enabled at one time.

Cheat                  Speech   Music Vol  SFX Vol   Music Test    Button(s)

Art boards             On       5          1         3             C-Left + C-Up
BOSS board             Off      6          3         4             C-Up
Midway board           On       8          4         5             C-Left
All boarders           Off      4          1         2             C-Right + C-Down
Little Bob (Tiny)      On       7          7         5             L
Naked Dude (G)         Off      6          4         6             C-Left + C-Right + R
Easy tracks            On       7          2         6             L
Normal tracks          Off      3          5         6             R
Hard tracks            On       5          2         4             Z
Long credits           Off      2          2         3             C-Up + Z
Stunt credits          On       1          3         7             C-Down + Z
Mirror tracks          On       7          6         6             L + R
Night mode             On       2          8         5             Z + C-Up
Grow                   Off      8          7         5             Z + C-Left
Ant                    On       1          6         1             Z + C-Right
Board only             Off      7          5         2             Z + C-Down
Midway mode            On       2          4         3             Z + L
Light                  Off      5          1         6             L + C-Up + C-Left
Canada                 On       4          0         7             Z + C-Up + C-Left
Ghost 1                On       4          6         5             L + R
Ghost 2                Off      0          8         3             R + C-Up + C-Down
Ghost in replay cycle  On       8          8         7             L + R + C-Down
No Board               on       0          8         4             C-Up + C-Left + C-Right
Helium                 Off      0          7         1             C-Left + C-Up + C-Down