Dragon's Lair cheats and cheat codes for PC

Last scene:
Press ESC during the first scene, when the snakes appear. 

Watch movies:
Hold ESC + R + / + L + N + 7 and press Fire. 


Funny stuffs:

Under the Drawbridge:
When you fall through the hole in the draw bridge, hit ENTER once
and then Up. That'll get you into the next board.

Falling stone bridge:
To get by here just jump in the approximate direction you are
moving (Left or Right)

Room with Vines:
Hit Enter to slash first vine.
Hit Up
Left or right (away from the closest wall)
Back
Wait until Dirk starts climbing stairs
Left or Right (opposite from the previous horizontal jump)
Up

Room with kettle and slime monster
Hit Enter to jump initially
Hit enter just before he eats you.

Whirlpools:
Turn left or right (away from the whirl pool.)

Rapids:
Hit left or right (which ever seems appropriate)
Up
Wait untill the next screen.
Hit up

Electric Shokds:
Right (or lrft)
Left (or right)
Right (or left)
Up
Right (or left)
Left (or right)
Right (or left)
Now quickly while in the air hit Left (or right)

Balls:
Wait for close up. Then hit down every time a ball in front of you passes.

Falling Junk:
Right
Left
Down

With Princess:
Down

Close up of Crystal Ball:
Enter

Final:
Down
Left (or right)
down repeated until a change
enter