For me, most of my favourite hillarious glitches were on Oblivion - especially when I had to chase down and kill an old woman for the Dark Brotherhood with a huge sword and found an Imperial watch guard shouting "For the Legion!" and finishing the job for me.
For creepy however, it would be the flashlight glitch on Silent Hill (when you turn it on everything goes pitch black) which had me spending half the game in even more fear.
For creepy however, it would be the flashlight glitch on Silent Hill (when you turn it on everything goes pitch black) which had me spending half the game in even more fear.