Video games are always so serious. You're almost always playing a grown-up (or at least a teen), out to save the world, kill things and scowl a lot. Why can't video games be more like the games we play outside as kids and just be, well, fun?
For the last few years, most major sporting games have had a mode that pits you as a single player progressing through their career. These can be fun, but damn it, they're not enough.