Theme: medieval, knight, castle, king, queen. It's a general
description of the theme. Like olden day castle theme where you
feel you're back to medieval days.
The food menus are for Kings and Queens
so the
portion is really good! Yar 40 - 60 is for ala carte + drinks.
BUT their single ala carte is huge!
What I suggest is
go for the best set meal and have some alcoholic drinks, it'll
make your meal a great one.
The last time I went there, I walk out of the bar like a KING.
Of course, for king's meal, you have to pay the king price.
I don't really
pay attention to the price, but I love the experience. If you go at
non-peak hours, you might see the boss and chef, and they might
come say hi to you 
P.S. Jie, who you bringing there? 
http://www.hungrygowhere.com/singapore/the_king_louis_grill_bar_vivocity/
http://www.thekinglouis.com/ (outdated website
information)
thanks v much!! i will consider =D
PS: cannot tell you larh, di, don't kpoh ;P
wat's ur fav set there? cos i saw some pics, like their black
pepper ribs is nice. and im a sucker for soups too!! =DD