Last month, speedrunner Cosmo Wright beat The Legend of Zelda: Ocarina of Time in 18 minutes and 56 seconds. Over the weekend, he hit 18:40.
That's with glitches, but without tools or cheats. He plays on a Chinese version of the game that loads text faster than the others. It's not quite as fun to watch as speedruns that don't use glitches, but hey -- still a world record, and still exceptionally impressive.