While technically not an arcade game you still had to use coins to make it work and it was found in penny arcades back in the day. At least that is my reasoning for this post and I am sticking to it. "Laughing Sally" apparently starts to laugh hysterically when you insert your coins but I personally say its real purpose is to make gallons and gallons of nightmare juice. Brrr.
Carriage Without A Driver - Kronos Quartet