Android 2.1 and above devices. All across the home and locked screen, our favorite Italian faux-plumber protagonist runs through randomly-generated levels across various themes like outside, underground, and castle. It's very customizable, allowing you to change the level's difficulty, see the alternate paths Mario's AI has plotted, and rendering the background (all at a cost to CPUs and battery life, of course). Free download -- donations suggested, of course -- and if you're looking for a way to stare at your phone even longer, well, look no further. Videos through which you can live vicariously are after the break.