If you're looking for proof that video games have made the leap from entertaining diversion to art, I suggest Gravitation. Playing Gravitation is a lot like watching one of those movies critics say is great but is really just two hours of uppity smart people sitting around talking about how much they hate themselves. You sit through it and tell all your friends you thought it was great so they won't think you're an idiot, but you really would've rather watched Ace Ventura: Pet Detective. Again.
The instructions are appropriately vague. Use the arrow keys to move, the space bar to jump. Everything else is up to the player to figure out and interpret. I don't want to do that for you, so I'll just leave you with the link to the developer's website.