Note: This procedure involves editing a game file; create a backup copy of
the file before proceeding. Use a text editor to edit the 'level.ini' file
in the '\data\levels\barcelon\script\' folder in the game folder.
Change the 'NbMaxMotos=12' line to 'NbMaxMotos=1'. Change the 'GainSR_0_0_0=10'
to 'GainSR_0_0_0=100'. This will allow you to be the only racer and always
win, with more credits.