Developer room: Proceed through level 1 until reaching the door to
get to the new part of the level. The door is located near a button
on the ground that causes a treasure chest to appear behind your
character. Do the jump attack move to jump on the invisible platform
hanging over the left of the door. Note: It is easier to reach
if playing as the girl. Once on that platform, jump up and to
the right to reach another invisible platform against the wall.
Then, keep jumping up against the wall until you find a secret
door. Go through the door to find a room with power-ups, gold,
and silver. There are also seven doors in the room. Each will
advance you to a different level in the game.
