Layered Maze:Survival

The robot "Robby" fell to the lowest layer of the layered maze. Please let survived until the goal of the uppermost layer. However, Robby consume fuel by moving. On the other hand, the ghost is wandering through the maze. When the ghost find Robby, it will try to capture. While avoiding the ghost and refueling in the items that fall into the maze, please reach the goal of the uppermost by moving the layer.