Weather select:
Hold S (sun) or R (rain) when selecting a track.
                                        
Type these in track seletion menu

Enable missile:
Hold M when selecting a single or quick race. Toggle the HUD during the race
to fire the missile.

Cheat mode:
Enter one of the following codes during a race to activate the corresponding
cheat function.


Effect            Code
Change map color  [Ctrl] + [Shift] + [F8]
Repair damage     [Ctrl] + [Shift] + [F9]
Clear black flag  [Ctrl] + [Shift] + [F10]