It seems you actually finished this later? Impossible, that's not how 2000's demos are supposed to work!
Anyways for this, it didn't really introduce any new concepts, but it was alright. The grenade "puzzle" if you want to call it that was fine, but I don't like being insulted for choosing one path first
I did enjoy having to look for the code, but I totally wouldn't have found it if not for the comments because I'm a headass.