If you had it down you could beat Dragon's Lair (and Space Ace, and the other Laserdisc games) with a single credit. IIRC there is no randomization within each scene; the only element of randomness was which out of a set of three scenes could play stemming from completing the previous scene. Once you've seen them all they always play out the same way. Further, each scene is only played once per complete game.
If you had it down you could beat Dragon's Lair (and Space Ace, and the other Laserdisc games) with a single credit. IIRC there is no randomization within each scene; the only element of randomness was which out of a set of three scenes could play stemming from completing the previous scene. Once you've seen them all they always play out the same way. Further, each scene is only played once per complete game.