The '''ghost wagon''' allows the players to walk through it so that they don't have to go around the [[train]]. This can be especially helpful on maps with less spare spaces. Upgrading the ghost wagon will make the [[wagons]] next to it also have the ghost effects, and furthermore if upgraded again. | The '''ghost wagon''' allows the players to walk through it so that they don't have to go around the [[train]]. This can be especially helpful on maps with less spare spaces. Upgrading the ghost wagon will make the [[wagons]] next to it also have the ghost effects, and furthermore if upgraded again. |