Dooors - Level 13

This one is difficult for red-green colourblind people. The symbol above the door is a "rotate back and forth" symbol. Do so, and the lights above the door change from red to green at each rotation, building up to a total of five green lights. But opening the door is only half the battle...

Once the door is open, you see it's blocked by a big spiderweb. Grab a burning stick from the fire on the left, and burn that sucker away. (This is also possibly the longest-burning burning stick in the history of iPod games...you'll have it for a while!)