This definition is a bit vague, so we’ll elaborate later. Out of Bounds runs essentially allow any glitches necessary to complete the game in the fastest possible time, while inbounds runs forbid the use of glitches or tricks where the player leaves the “intended” area of the game. In the case of Portal, there are two main speedrunning categories. If this run was to be optimized for SDA’s timing method, the routes would be altered slightly. This run was completed with pure speed as the primary goal, and as such we paid no attention to the extra segment penalties from SDA. But keep in mind that this is not in our final time’s favor - if we cut off frames due to segment transitions, we wouldn’t cut that time off of our final time, since the demo had those “bad frames” in it anyways, and we calculated our final time using those unedited, uncut demos.Īlso note that if this run is accepted to SDA, the time displayed on their website will not match our time due to differences in timing endpoints as well as the addition of segment penalties. Due to our editing methods and other anomalies, the video time and the run time might not match up exactly. Please note that the final time was calculated as accurately as possible from the demo files themselves, not from the final video. Any tricks you see us perform can be done by anyone with a legitimate Steam copy of build 5135 on their PC. We used multiple methods of rolling back our version of the game to build 5135, but we want to stress that none of the methods we used to launch the game modified gameplay in any way. In the current Steam version, a game-breaking glitch has been fixed, which is disadvantageous for us as speedrunners. We decided to use the old version of Portal (build 5135) to complete this speedrun.

The cosmetic modifications will not appear in the SDA version of the run, if it is accepted to SDA. As such it is not possible for them to have given us any sort of advantage during gameplay.

Some Portal gun skins were used for entertainment purposes only, but these modifications were added only after the run had been completed, for recording the demos. Glitches and programming flaws are heavily abused.

This run was completed without the use of scripts, cheats, hacks, or gameplay modifications of any kind. 4 For more info and detailed descriptions, see the document here.

Portal 2 speedrun