Perhaps the first thing you were thinking about when you came in here were actual episodes. If MKR was still in the stages of being distributed by fansubs, you might find them here. But now, MKR has been licensed and released in North America by Media Blasters, so following the rules of fansubs, no more distribution is to be made. If you want to watch it, you'll have to buy the tapes or DVDs.
That being said, what can you expect here? Well, how about stuff like Winamp skins, midis and the SNES MKR ROM. But admit the ROM isn't such a great game (you won't fall in love with it even if you're a MKR fan) and no serious gamer plays a SNES anymore. Besides, the game never got an English release while the ROM got translated, meaning it's the only way to play this game while understanding all the text (unless you can read Japanese).