Running MapleStory off a Flash Drive?

What do I need to have on the drive?
What do I need to do once I plug it in to the Maple-less computer?
Anything else I need to know?

You just need all the Maple files. As long as that computer would normally be able to handle Maple, it should run it just fine. (I've done it on several computers with several different flash drives)

Pretty much what that guy said, make sure your flash drive is big enough though. Maple is over 2GB now, if I'm correct