Osaka & Tokyo attraction

Hi,

1) Is there a different admission ticket for Osaka Universal Studios for visitors that do not take the rides but would like to shop in that place?

2) Heard the Castle place in Osaka is very big and far from the train stations. Can visitors rent bikes to get there from the train station?

3) Any recomendation for market place in Tokyo or Osaka where one can eat good sashimi?

Thks.

Is there a different admission ticket for Osaka Universal Studios for visitors that do not take the rides but would like to shop in that place?

No, all tickets include the rides.

Heard the Castle place in Osaka is very big and far from the train stations.

Not really. The castle park starts immediately outside of the train stations. It just happens to be a large castle with a large castle park around it. It is part of the fun to approach the central citadel by walking through through the outer citadels. Castles were built in a way that intruders were not able to just walk straight to the central citadel.

Any recomendation for market place in Tokyo or Osaka where one can eat good sashimi?

Tokyo's Tsukiji Market:
http://www.japan-guide.com/e/e3021.html

What about in Osaka? Any market place to go to?

http://www.kippo.or.jp/culture_e/syoku/umiyama/osaka02.html

Try looking there. That might help.