Here's a link to Heroic Decepticon's blog, particularly his toy shop locator guide for Japan, Singapore and HK. Hope it helps you, as this is the guide used by almost all the people here who went to Japan... there may have been some newer shops now coz this was last year's but IM sure it's all still there.

http://heroicdecepticon.blogspot.com...-for-hong.html

comes with some maps too so it is a very useful guide.