Half-Life 1: The Immortal Security Guard of Black Mesa
So, I was playing a bit of HL1 and I noticed this poor security guard who was mortally wounded in the control room of Black Mesa's rail system. Out of kindness, I decided to put him out of his misery. Only one problem: I COULDN'T KILL HIM!
Call it a bug with the game's engine, but this guard might as well be immortal if 35 magnum shots, 8 shotgun blasts, 14 grenades (4 of which were from the assault rifle), and almost 4 assault rifle rounds and STILL WOULDN'T DIE.
NOTE: Before someone compares me to DSP for wasting precious ammo on what basically amounted to a joke, keep in mind that I had autosaves for my disposal after this clip was finished filming.