Dragons Lair now there is an old classic. I remember that being a great game but very low on the replaplity scale. Once you got all the motions down once and played through the whole thing, never really felt the urge to play again. Don't know if you've looked much, but just doing a random yahoo search I came up with this...
Elavator action in a coin-op was before my time, I loved playing it on NES never saw it in an arcade, or gate of doom for that matter. Now the D&D Tower of Doom Coin-op that is another game I remeber spending way too much time playing.