SA2:B TAS: Wild Canyon Mission 5 in 0:11.95
This is a tool assisted speedrun of Wild Canyon mission 5 with a completion time of 0:11.95 (in-game time).
Inputs by THC98, Flossy, and myself.
This TAS showcases a lot of interesting tech. The "Speed storage through restart" that THC98 and Brianpso figured out recently (https://www.youtube.com/watch?v=X2Nm7...) is abused to displace Knuckles forwards at the start of the stage.
Following that, there's 1 frame when touching the bottom of the wind tunnel where it's possible to spiral upper (or jump), giving you considerably more initial upward momentum through the tunnel.
After, we abuse "glide zips" to displace Knuckles forwards on the lips of the stone boxes. I do not understand how or why glide zips work, and this is the first IL to take advantage of them. More research into those is needed.
Lastly, similar to the spiral upper possible in the wind tunnel, there's 1 frame upon touching a killplane where you may also sprial upper. Doing this stops the in-game timer, and leaves you with control over your character before the screen fades to black.
I believe aiming for in-game time for ILs is the most interesting approach which one can take. Story Mode TASes will always aim for RTA in each stage, and a theoretical "all A ranks" or "180 emblem" TAS would also aim for RTA (in addition to getting A ranks). Therefore, ILs, which don't aim for A ranks, but rather the best possible time, may as well show off the lowest possible IGT, using IL specific strats, such as the wind tunnel displacement, and death plane spiral upper to stop the timer. (Of course, this is within reason, and tricks that allow you to complete a stage with a time of 0:00.02 are not interesting, or something I ever plan on uploading a video of).