haha, do you think that Yodobashi store is big enough  
? 
So do you all think our pitstop is the mystery temple, introflash picture place? I can't see where it could fit in as far as a task? *must keep searching*  
 
 
  stop...stop...my brain hurts.....  

OK, let me see if I can get this straight:
Roadblock  --->  Taxi
Detour (1)  --->  Robots
Detour (2)  --->  ? (unknown)
So what does that leave:
Kishiwada Castle - Get a clue? / pitstop ? (possiblly)
Rennyu statue Temple - Get a clue? / pitstop (possibly)
Osaka Clown - get a clue on the bridge? / eating task (unlikely, as they are typically roadblocks)
Fugu restaurant - probably only background shot
Racer says something about train?  None of the previews shows anything outside Osaka?
AND DON"T GET ME STARTED ON THAT DAMN DRUM !!!!!!! 
  
 
  My brain hurts!