Yeah , i discovered it while playing.
Well, i completed the legend of the streets juz now , defeating all
characters from myogi to Iro, wif a double cross. after defeating
Takumi in Iro. All maps are unlocked. Which means real myogi, real
usui and shomaru pass plus some other stuffs. This maps are
available in time attack originially, but not in the arcade
mode.
Real Myogi
Shingo 7/10 downhill
Nakazato 8/10 uphill
Real Usui
Sata Mako , Sayuki 9/10 downhill
Shomaru pass
Wataru 9/10 downhill
and the last two maps of the timeattack, well, the opponents are
the same as the one as happo