Quoted from xTheBlackKnightx:games you discover are not properly grounded, even after conducting dead (meaning fully unplugged) and live testing
I had a game that did this! I still to this day don't understand HOW, because even if I would turn it off, leave it plugged in for an hour, unplug it, leave it powered off for HOURS...that motherf. would still shock the bloody hell out of me. It got so bad that eventually I just started using a foot and a half long flathead screwdriver to ground one of the coil tabs. Think once was enough? HELL NO...that damn thing zapped me right on the cheek after being grounded out when I brushed near a coil tab working on the game. I eventually figured out that if I grounded it, waited 30 minutes, grounded it AGAIN...then, and only then, I was safe.
Still, I've never had stitches or a broken bone...from anything.