2/ Blow up the dynamite and quickly jump back up, then push the balloon to the right.
3/ Stand on the red button in the top left-hand corner. (Don't pick the torch up yet)
.4/ Quickly go down and then right, then get th torch and blow up the dynamite in the top right-hand corner.
5/ Get the torch and blow up the dynamite in the top left-hand corner, then get the gem and push the boulder to the right.
6/ Go down and get the gem in the middle, then go right along the bottom, get the torch and go back left across the bottom to blow the dynamite up on the left hand side. (Don't go through the two traps yet).
7/Go quickly through the two trap and round the bottom right-hand corner to push the boulder.
8/ Get the torch and the gem, then go over the trap to get the key.