The TAS thread
Tool-assisted speedruns can be amazing.
One of my new favorites is this one of N64 puzzle game Tetrisphere:
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☭
B̤̺͍̰͕̺̠̕u҉̖͙̝̮͕̲ͅm̟̼̦̠̹̙p͡s̹͖ ̻T́h̗̫͈̙̩r̮e̴̩̺̖̠̭̜ͅa̛̪̟͍̣͎͖̺d͉̦͠s͕̞͚̲͍ ̲̬̹̤Y̻̤̱o̭͠u̥͉̥̜͡ ̴̥̪D̳̲̳̤o̴͙̘͓̤̟̗͇n̰̗̞̼̳͙͖͢'҉͖t̳͓̣͍̗̰ ͉W̝̳͓̼͜a̗͉̳͖̘̮n͕ͅt͚̟͚ ̸̺T̜̖̖̺͎̱ͅo̭̪̰̼̥̜ ̼͍̟̝R̝̹̮̭ͅͅe̡̗͇a͍̘̤͉͘d̼̜ 
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Almost.
Feel free to skip to 11:00 if the first part of it seems boring.
I guess this is kind of an unusual TAS, but I thought the way the player basically reprogrammed the game from the inside was ridiculous enough to make it worth watching.