You probably won't get a job, unless you are chummy-chummy with a manager there. EVERYONE who plays video games would love to work for a company that either makes or sells video games - plain & simple.

So not to discourage you but keep in mind that everyone in those game stores who's 16 and older has probably at one point or another tried to get a job either there or at another game place.

The closest I ever got was working the electronics department at K-Mart while in college. It was occasionally cool but more often than not dreadfully boring.

No harm in trying though...