Emulated using Caprice v4.6.0

Frame counted to 17:16.4

AFAIK timing starts on the frame that you take control, which is the first frame that 1 2 3 4 changes to N 2 3 4 and the word CODE appears at the bottom of the screen. Time ends on the last frame of input, which is the first frame that you enter the final door (you don't include the time it takes for Xunk to get to the door or the screen transition).

Good Video Game.