If you've ever seen The Amazing Race, then it's sort of like that. Pretty much, it'd be a race against time, where the faster you were in the game, the more benefits you'd have for yourself. So like, the longer you take, the harder it gets. :)
I tried Game Development with RPG Maker XP once, and I never really got into it. I had an awesome idea as well, which people actually really liked, but I was told to start with something simple and generic, which I think is what made me lose interest. :(