Why waste your graffiti on something as temporary as the rear wall of the nearby Rio Grande or Ronald's Cheese Corner when you could have it enshrined forever, digitally? That's the opportunity being offered by Ruffian Games, which is looking for graffiti submissions from fans who'll have a chance to get their art in the game and their name in the credits, if their work is among the best, that is. If you're having trouble deciding what exactly, the theme - the jumping off point, if you will - of your e-vandalism should be, may we suggest ... Mighty Horse?