Once upon a time, this server would ask you to say
holeshot and it would say digivid. Then, for a while,
it said nothing. Now it says things again: digivid is
the cheat you're looking for. The decompilation also
taught us previously unknown ones depending on
the console:

+-----------------------------+------------+------------+------------+
| Script                      | PS2        | Xbox       | GameCube   |
+-----------------------------+------------+------------+------------+
| cheat_unlock_always_special | superduper | superduper | superduper |
| cheat_unlock_pedgroup3      | machomen   | machomen   | machomen   |
| cheat_unlock_pedgroup5      | goodolboys | goodolboys | goodolboys |
| cheat_unlock_pedgroup6      | minwage    | minwage    | minwage    |
| cheat_unlock_pedgroup8      | sputnik    | sputnik    | sputnik    |
| unlock_all_sponsors         | -          | -          | keepitreal |
| cheat_unlockmovies          | -          | super8mm   | fish-eye   |
| cheat_reallygivelevels      | boltcutter | lockpik    | hacksaw    |
| cheat_give_im               | -          | marvelous  | wongchu    |
| cheat_give_thud             | -          | argh!!     | -          |
| unlock_all_cheats           | -          | cap&ball   | -          |
+-----------------------------+------------+------------+------------+