The Legend of Zelda : A Link to the Past speedrun.
Today, I just beat the game in Any% in 1:39:35 hours which is good, but bad at the same time. Really good segments, but I lost like 1:40 minute in one spot alone. I'll be going for lower. The World Record for this category is 1:24:31 which is mindblowingly fast. The execution was close to perfect and I don't think anyone except the WR holder will ever beat that time anytime soon.
If you want to be really good at this game, it takes a whole lot of work and determination... and time. Funny to think that to save a lot of time in this game, you need to waste time practicing it. Nice paradox.