oh gosh level 20 is soo hard but you just run up underneath the dragon and then push the switch which gives you a witch toad you have to put into the crack in the wall when opens part of a secret staircase, you have to go and halfway up there is a dark spot on the wall and you press it which shuts the wall behind you showing a secret message that says there is a crowbar to your left, but you have to go to the right and there is a sledge hammer which you pick up and break down the wall, which opens up the rest of the secret staircase, then you have to go up and press a lever which opens a trapdoor, just dont run into it right away you have to wait ten seconds then you jump down and land on the dragons back, you have to grab one of the scales and stab it in the eye then jump down and use the grappling hook to rip off the dragons jaw and then you have to stab it in the roof of the mouth and then you get the key on his tail to open the level exit