Best physical stores to buy games in Japan?

[senseiman]

Ok, new update looking for new suggestions! I have a couple day trips planned on the shinkansen to Osaka and will visit Den-Den Town (日本橋) at least once. Are there any recommended game shops within the area that might be worth going to?

I was there last August, needless to say Super Potato is a must.  There is another shop called Retro TV Game Revival which is also worth checking out, I did a post about it here:

http://famicomblog.blogspot.jp/2013/08/kansai-retro-game-shops-2-den-den-town.html

You should also check out the Mandarake in Amerika Mura, which technically isn`t in Den Den Town but its not far away (about 30 minutes walk, but its a nice walk that takes you through some interesting shopping streets).

There are a ton of other cool shops that you will probably find in the neighborhood just by strolling around.

[StJackie]

GEO  - Sometimes has retro.
dorama

just look for signs below..

also if walking around.. try and stop into some secondhand shops (usually have washers or small fridges outside..) they are bound to have retro games..

[MarioMania]

Why couldn't this go in "Other Gamng"