Below are some you can try.
Hananomai Ryogoku (sumo themed)
http://www.chimney.co.jp/event/ooedo808/ec/index.html
Ranse no Koshitaka Sengoku Buyuden (Samurai themed)
http://www.diamond-dining.com/shop_info/sengoku-buyuden/
Alice’s Fantasy Restaurant (Alice in Wonderland theme)
http://www.alice-restaurant.com/
Shibuya Kyoumachi Koi Shigure (Kyoto themed)
http://www.diamond-dining.com/shop_info/kyomatikoisigure/
Vampire Cafe (Vampire themed)
http://www.diamond-dining.com/vampire/top_flash.html
Zauo Shinjuku (fishing themed)
http://www.zauo.com/
Ninja Akasaka (Ninja themed)
http://www.ninjaakasaka.com/
Robot Restaurant (robot themed)
http://www.robot-restaurant.com/E/system.html