2/ Get the gem from the bottom left-hand corner then go up and get the torch and the key.

3/ Go down and get the chest from the bottom on the left, then blow up the dynamite under the door to get the gems.

4/ Get the torch and the key from the top right-hand corner, then get the remaining chest.

5/ Run between the green and red dynamite to blow them up and get the key for the door.