Curious though about the bugs. Right at the start, as g-man talks his eyes are missing textures and his mouth doesn't move. Both of those bugs continue, when I get to the part where the guard removes his mask, his lips don't move and the video monitor doesn't change to show the professor.

Is it just a minor oversight or is that something hard to fix?

Booting up the original, some shadows and other graphic details are missing.

Not complaining! Just curious. It made we want to play again!