The fix is to just delete that demo off your PC as fast as you can.
Its a disgrace to the Dragon's Lair name.
If it did work.. you know what you'd be playing? Video footage
taken of SOMEONE ELSE playing Dragons Lair 3D,
and then every once and a while you just have to put in a move
(ala Classic DL) to keep the video going. Its the lamest thing
since.... Well.... its just the lamest thing.