Originally Posted by Epyon83
could you please be a little more specific regarding the 17th concept art, i cant find it.
magnet world, check
got electric ability, check
tube to the left which brings me to the center area, ckeck
concept art, not checked
The 17th is back through the Ice Room. Go through the tube as if you had just beaten the boss and you will be going towards another tube. At the end there is 1 room you couldn't have got in, and there is the 17th concept art.