mohamedraif (often referred to as moh or raif on the IRC and forums) is a highscorer/speedrunner and occasional mapper. He is best known in the Metanet community for his MBDs (Manually Built Demos). These demos generally display speed, innovations, precision, and consistency of tricks that are nearly impossible for any human to replicate. According to some prominent community members, they are the best thing ever happened in the whole history of N. You should definitely watch all of them, they can be found on the forums.