all these are easy even the other one
it takes a while but you'll get it eventually. took me like a minute and was fun +1
its a bit tricky but it's very easy because of the way it is set up +1
I did it! this was fun, +1
first layer(leftmost one) is a toggle, but when turning off it sends a signal to second layer which sends to next layer, but second, third and fourth layers turn on when sparked from the wire below, and turns off AND also sends a signal to next layer when sparked from top wire