This is a tool-assisted speedrun. For more information, see http://tasvideos.org/4485M.html. TAS originally published on 2021-07-16.
Alien 3 on the NES is similar to Probe Software's adaptations of the film on other systems. While using the same overall game concept as the Sega and Commodore versions, the NES title has unique levels.
The player controls Ripley through a number of platform levels. She must not only defend herself against hordes of aliens and find the exit, but also save a number of prisoners, all within a tight time limit of only minutes per level.
J.Y uses the new door clip glitch to improve the previous run (http://tasvideos.org/2713M.html) by Randil (http://tasvideos.org/Randil.html) by impressive 6:28.60 (23,355 Frames @60.098813897441 FPS) minutes.