Tomb Raider II cheat/bug

I found a bug in Tomb Raider II, Offshore Rig level, which lets you cheat on
a minor point.  I'm using the PC version.

After you get out of your prison and run to the control center overlooking
the prop-plane, instead of waiting for the goons to shoot the window, just
stand right in front of the window, then perform the roll.  You'll end up
on the other side of the window without having had to break the window!

