Earlier this month we told you about Mari0, a Super Mario Bros. and Portal hybrid from indie game developer Stabyourself.net. Yup, it's the old Super Mario Bros. with portal guns, user created content, a map editor, and four player local co-op. It's exactly what it sounds like. I downloaded the game here and took it for a spin. I have to say, it's a pretty good time, especially for a free download. The portals worked well and it's saturated with nostalgia.