If you think Portal was a game you could finish quickly, think again! Speedruns come around and make it unbelieveable how quickly a game can be finished, but what if you let a writtten script play it perfectly for you? This is the premise of TAS, Tool Assisted Speedrun. This speedrun will be done by going frame by frame through the game and have the controls being inut on a frame perfect basis. This method is so precise, most of these runs won’t be able to be performed by a human. Let’s have a look.
Humans vs Bots
Portal speedruns are divided into four different types of categories. The outbounds, the inbounds, the inbounds legacy category and the final one we see above: glitchless. It’s a bit weird to have all these categories with different types of definitions what is allowed and what isn’t. To explain that, we can simply break down each level of glitch usage. Outbounds is the most glitch-use category, where save glitching comes through and the player can be seen out of the game map. With inbounds, your portals and camera cannot leave the bounds of the map. For legacy inbounds this goes even further. Movement glitches are allowed, but any glitches related to saveing and loading are not. So what is glitchless then? Only use the items in the map and use pixel perfect portals, not save glitches or any other kind of technical bug usage. Easy, right?
The current human world record for glitchless speedruns in Portal is being held by Shizzal and was achieved on March 15th 2019. So as it stands , the current world record is just barely slower than the frame perfect TAS bot with a difference of 2:13.417. So roughly two minutes could potentially saved as I understand it. If it is actually humanly possible, that’s different question.
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