The good folk over at stabyourself.net have released their full build of Mari0. The name is exactly what it looks like. Super Mario Brothers combined with Portal. The best part is the game actually works, and works well. Playable for Linux, Mac or PC, you can download it HERE. The game comes complete with the Mario levels, and a map editor for you to create your own Mari0 insanity. I played through the first two levels, just to remind myself how bad I am at Mario without a controller, and to see exactly what I could do with the portals. I expect much more creativity from players than I showed, but you can check the quick video of me failing at level 2 below, give it a go and let us know what you think!