mobilewikia
On Wikipedia, I can read the mobile version of the pages by changing the URL from http://en.wikipedia.org/wiki/Spice into http://en.m.wikipedia.org/wiki/Spice
I wonder if I can do something like that on Wikia too.
For example, I would like to see the mobile version of the page http://starcraft.wikia.com/wiki/StarCraft
Have you tried going to http://m.gmail.com to access the mobile site directly?
This takes me straight to the Gmail mobile interface with no user agent switching required.
There is an option to choose the older version when you scroll to the bottom of the page. Select that option and you will be directed to use the older version of Gmail.
Best Answer
Wikia has a mobile application you can try out. However if you do not have an Apple product this is not very helpful.
If you are on a mobile device trying to view the page you should be automatically switched to the mobile skin based on your user agent.
As you can see in the image below, I am emulating using a Nexus 5 phone to browse Wikia and it has given me the correct mobile site.