Mouse can move within walls.

During the runner’s turn, Mouse may sneak into and out of the walls. Mouse may move into any direct wall (excluding the outer edge bounding walls when scrolling is off), travel along continuous wall segments, and pop out into any tile directly edged by the wall. Mouse may not move into or out of the ends of a wall. Mouse can sneak into the walls twice per round.

Mouse moves into wall and may exit into any directly edged tile.		Mouse moves into wall but NOT diagonally from a wall corner into a tile.