Quoted from Spyderturbo007:1. How do I turn it on and off? I know it sounds stupid, but when I plug it in I have to start a game for it to light up. The only way I can see to turn it off is to unplug it. Is that correct?
That is correct; there is no on/off switch on that era Gottlieb. To turn on, they have to be 'coined up' (i.e., drop a coin in, or start a game if it has credits). To turn off, you slap the bottom of the cabinet to bounce up a knockoff switch. Or unplug it. Easiest thing to do (and preserve the game as original) is to just plug it into a power strip. Still has to be coined up to turn on (or tweak it to be on free play to just start with the replay button).
Quoted from Spyderturbo007:2. There seems to be a wire that isn't attached. I suspect it goes to the switch next to it, but does anyone know what that switch does?
Looks like that's where that wire goes. That's the "ball roll tilt" switch.
Quoted from Spyderturbo007:3. How do you adjust the tilt? I tried screwing it in like you would on a Stern, but it doesn't appear to be adjustable and just spins.
Which tilt? There's the tilt bob (has a small wire clip below it that you squeeze and push up or down), the ball roll tilt (has screws to loosen, then tip the ball cage up or down), and then one or two weighted open switches (those just are gapped).
The game name is "Sky Line".