The first time I played a Pinball as a child and heard a knocker, I jumped!, would be my earliest.
The one that freaked me out the most, was the First Safecracker coin that smacked me in the chest playing in the dark.
I thought something bit me.
The most recent was Horde on TWD, and Finally getting it for the first time, a couple weeks ago.
Only TZ repeatedly nails me, even though I know its coming.