I'm trying to get into doing contracted work for people seeking Wordpress themes, what is a typical request that clients will ask me for?

I'm considering in throwing together a small game in JavaScript and having it interface with MySQL and other Wordpress technologies to show people that I am capable of putting together Wordpress themes that can perform a wide range of functions with HTML5/AJAX/CSS/MySQL/PHP.

Sorry if it sounds like I have no idea what I'm doing, but that's sort of the reason why I'm asking this question in the first place.