This stage is equivalent to the regular IL, except you can't be caught...so it changes the camera screen. 4 flashes and 5 flashes on elevator rides, didn't camshot to delay guard movement, didn't get the diagonal fire walk, and 2 rubble hits. Add all of that together and the stage could still be improved by ~10 seconds. The grind is horrendous!

Played on Game Boy Interface Speedrunning Edition, Aug 2021 version