Here are some cheats and tips for the game Downhill Snow.
Bonus characters:
Complete the game under the hard difficulty level to unlock two bonus
characters.
Mirror mode:
Complete the game under the normal difficulty level. Mirrored version of
the tracks may now be selected under practice mode.
Bonus costumes:
Use each of the characters to complete scenario mode. Four additional
costumes that may also be used in arcade mode will be available.