Now, about SAMMY'S EBISU PLAZA in Osaka ... It was shown in map as tourist attraction -- refer to that smiley face (as in right picture). It is on Dotonburi (near Big Crab & Glico man -- symbol of Osaka) in 3-4 storey building opportunity Big Crab . They said that delicious food all over Osaka is here !!! The set up is like Old Style Temple Fair or Fun Fair (theme park) -- Have to respect the setting.
On my opinion, don't bother going in ... you can find fresh local food outside !!! Anyway, you can try and see by yourself -- no admission fee, elevator available and only pay cash later after you eat. Check out at : http://www.bento.com/kansai/phgal-sammys.html