Black areas and walls

There are areas on some of the room tiles that are colored completely black. These areas represent solid rock. These areas can never be moved onto or through by any means.

There are also areas of the tiles that are a graphical representation of a wall. These areas are not treated as spaces and can never be moved onto or through by any means. There is one exception to this rule. On the Pipes tile, the dark areas are representative of gaps between the pipes. These can only be moved through by using items that let a mouse cross over red lines, such as the Fishhook and Thread or Levitate Scroll.