Tilt Exposé

Vince (and my dad) asked about how the tilt sensor works; here it is. Remarkably simple: when the free-moving bell/cone hits the ring, the game detects a tilt (it acts as a switch, completing the circuit). Its sensitivity (which seems to be set pretty liberally) can be adjusted by moving the bell up and down the rod.

There is another switch in the game consisting of a weight on the end of a metal spring switch. I suspect this is also part of sensing tilt, as this one wouldn’t detect you lifting the machine very well.