===================================================================
--- original.js
+++ change.js
@@ -61,41 +61,26 @@
 });
 var Wall = ConfigContainer.expand(function (config) {
 	var self = ConfigContainer.call(this, config);
 	var wallIndex = Math.floor(Math.random() * ROAD_GEN_WALL_ASSETS);
-	var scale = 0.9 + 0.2 * Math.random();
+	var scale = 1; //0.9 + 0.2 * Math.random();
 	self.attachAsset('wall' + wallIndex, {
 		anchorX: 0.5,
 		anchorY: 1,
-		scaleX: Math.random() < 0.5 ? -scale : scale,
+		scaleX: scale,
+		//Math.random() < 0.5 ? -scale : scale,
 		scaleY: scale
 	});
 	self.taken = false;
 	self.update = function () {
-		if (self.taken) {
-			var targetX = recycleBin.x;
-			var targetY = recycleBin.y;
-			var speed = 10;
-			var dx = targetX - self.x;
-			var dy = targetY - self.y;
-			var distance = Math.sqrt(dx * dx + dy * dy);
-			if (distance > speed) {
-				self.x += dx / distance * speed;
-				self.y += dy / distance * speed;
-				self.scale.x *= 0.9975;
-				self.scale.y *= 0.9975;
-			} else {
-				self.x = targetX;
-				self.y = targetY;
-				self.destroy();
-			}
-		} else if (!self.taken && player.body.torso.intersects(self)) {
-			self.taken = true;
-			var globalPosition = self.parent.toGlobal(self.position);
-			self.parent.removeChild(self);
-			game.addChild(self);
-			self.position = game.toLocal(globalPosition);
-			LK.getSound('collectDetritus').play();
+		console.log("player.sliding:", player.sliding);
+		if (!player.sliding && player.body.torso.intersects(self)) {
+			console.log("Player hit a wall!");
+			// Flash screen red for 1 second (1000ms) to show we are dead.
+			LK.effects.flashScreen(0xff0000, 1000);
+			// Play lose sound
+			LK.getSound('lose').play();
+			callGameOver(true);
 		}
 	};
 	return self;
 });
@@ -193,9 +178,9 @@
 	}
 	function attachObjectRadial(parent, object, obj) {
 		var offsetTotal = ROAD_SEGMENT_HEIGHT - (obj.offset || 10);
 		var rotation = -(1 - obj.anchorR) * ROAD_SEGMENT_ANGLE;
-		object.x = Math.sin(rotation) * offsetTotal - (obj.levitOffset || 0); //125* (obj.levitOffset || 0) - 400 * (obj.flying || 0);
+		object.x = Math.sin(rotation) * offsetTotal - (obj.levitOffset && !obj.isOver || 0); //125* (obj.levitOffset || 0) - 400 * (obj.flying || 0);
 		object.y = Math.cos(rotation) * -offsetTotal - (obj.levitOffset || 0);
 		//object.width = obj.width;
 		//object.height = obj.height;
 		object.anchorX = obj.anchorX;
@@ -203,14 +188,8 @@
 		object.scaleX = obj.scaleX || 1;
 		object.scaleY = obj.scaleY || 1;
 		object.rotation = (obj.rotation || 0) + 0;
 		parent.addChild(object);
-		var clone = obj.clone || 0;
-		if (clone) {
-			object.x = Math.sin(rotation) * offsetTotal - (obj.levitOffset || 0) - 200;
-			object.y = Math.cos(rotation) * -offsetTotal - (obj.levitOffset || 0) - 200;
-			parent.addChild(object);
-		}
 	}
 	function generateBackground() {
 		console.log(self.distance);
 		background.removeChildren();
@@ -262,10 +241,11 @@
 				});
 				attachObjectRadial(self.previous.background, new BoilingLava(), {
 					anchorR: 0.1 + 0.8 * Math.random()
 				});
-			} else if (Math.random() < ROAD_GEN_WALL_CHANCE) {
+			} else if (road && road.wallSegmentCount < ROAD_MAX_WALL_SEGMENTS && !self.isRiver && !self.previous.isRiver && Math.random() < ROAD_GEN_WALL_CHANCE) {
 				self.isWall = true;
+				road.wallSegmentCount++;
 				var wallIndex = Math.floor(Math.random() * ROAD_GEN_WALL_ASSETS);
 				var scale = 1; //0.9 + 0.2 * Math.random();
 				var anchorR = 0.5; // 0.4 + 0.2 * Math.random();
 				attachObjectRadial(background, new Wall(), {
@@ -282,17 +262,19 @@
 						anchorX: 0.5,
 						anchorY: 1,
 						scaleX: scale,
 						scaleY: scale,
-						levitOffset: 250
+						levitOffset: 250,
+						isOver: true
 					});
 					attachObjectRadial(background, new Wall(), {
 						anchorR: anchorR,
 						anchorX: 0.5,
 						anchorY: 1,
 						scaleX: scale,
 						scaleY: scale,
-						levitOffset: 500
+						levitOffset: 500,
+						isOver: true
 					});
 				}
 			} else {
 				if (Math.random() < ROAD_GEN_TREE_CHANCE) {
@@ -403,8 +385,9 @@
 			rotation: i * ROAD_SEGMENT_ANGLE
 		});
 	}
 	self.riverSegmentCount = 0;
+	self.wallSegmentCount = 0;
 	self.attachAsset('circle', {
 		width: 500,
 		height: 500,
 		anchorX: 0.5,
@@ -437,8 +420,12 @@
 			if (segments[destroyIndex].isRiver) {
 				self.riverSegmentCount--;
 				self.riverSegmentCount = Math.max(0, self.riverSegmentCount);
 			}
+			if (segments[destroyIndex].isWall) {
+				self.wallSegmentCount--;
+				self.wallSegmentCount = Math.max(0, self.wallSegmentCount);
+			}
 			segments[destroyIndex].fadeout = true;
 		}
 		if (newRegenerateIndex >= 0 && newRegenerateIndex !== regenerateIndex && segments[newRegenerateIndex].fadeout) {
 			regenerateIndex = newRegenerateIndex;
@@ -621,32 +608,32 @@
 	var step = ROAD_STEP_DEFAULT;
 	var nodeDistance = 0;
 	var nodeTicks = 0;
 	var nodeMulti = 0;
+	var slideTimer = 0;
+	var SLIDE_DURATION = 60; // Duration of slide in frames
 	var body = self.addChild(new PlayerBody({
 		y: -370
 	}));
 	self.body = body;
 	self.update = update;
 	self.jumpStart = jumpStart;
 	self.jumpEnd = jumpEnd;
 	self.jumping = false;
+	self.sliding = false;
 	self.slideStart = slideStart;
 	self.slideEnd = slideEnd;
 	self.intersects = function (obj) {
 		var bounds1 = self.getBounds();
 		var bounds2 = obj.getBounds();
-		if (sliding) {
+		if (self.sliding) {
 			// When sliding, reduce height for collision check
 			return bounds1.x < bounds2.x + bounds2.width && bounds1.x + bounds1.width > bounds2.x && bounds1.y < bounds2.y + bounds2.height && bounds1.y + bounds1.height / 4 > bounds2.y;
 		} else {
 			return bounds1.x < bounds2.x + bounds2.width && bounds1.x + bounds1.width > bounds2.x && bounds1.y < bounds2.y + bounds2.height && bounds1.y + bounds1.height > bounds2.y;
 		}
 	};
 	;
-	var sliding = false;
-	var slideTimer = 0;
-	var SLIDE_DURATION = 60; // Duration of slide in frames
 	self.update = update;
 	self.jumpStart = jumpStart;
 	self.jumpEnd = jumpEnd;
 	self.slideStart = slideStart;
@@ -711,9 +698,9 @@
 			falling = false;
 			aerialSpeed = 0;
 			body.pushAnimation(stopped ? animationStand : animationRun, PLAYER_POSE_TRANSITION);
 		}
-		if (sliding) {
+		if (self.sliding) {
 			slideTimer++;
 			if (slideTimer >= SLIDE_DURATION) {
 				slideEnd();
 			}
@@ -732,9 +719,9 @@
 		nodeMulti += stopped ? SCORE_STOPPED_FACTOR : speedFactor;
 		nodeTicks++;
 		// Adjustments
 		var stepHeight = ROAD_STEP_HEIGHT_BASE + step * ROAD_STEP_HEIGHT_INCREMENT; // TODO: Better scaling
-		if (!sliding) {
+		if (!self.sliding) {
 			self.y = baseY - stepHeight; // TODO: Better scaling
 		}
 		self.scale.set(PLAYER_SCALE_BASE * stepHeight / ROAD_SEGMENT_HEIGHT); // TODO: Better scaling
 		body.animate(PLAYER_ANIMATION_SPEED_BASE * speedFactor);
@@ -752,9 +739,9 @@
 			callGameOver(true);
 		}
 	}
 	function jumpStart() {
-		if (!gameOver && !jumping && !falling && !sliding) {
+		if (!gameOver && !jumping && !falling && !self.sliding) {
 			LK.getSound('jump').play();
 			jumping = true;
 			jumpAction = true;
 			aerialSpeed = PLAYER_JUMP_STEP_INCREMENT;
@@ -764,10 +751,10 @@
 	function jumpEnd() {
 		jumpAction = false;
 	}
 	function slideStart() {
-		if (!gameOver && !jumping && !falling && !sliding) {
-			sliding = true;
+		if (!gameOver && !jumping && !falling && !self.sliding) {
+			self.sliding = true;
 			slideTimer = 0;
 			body.pushAnimation(animationSlide, PLAYER_POSE_TRANSITION);
 			body.rotation = -Math.PI / 2;
 			//body.scale.x *= -1;
@@ -781,10 +768,10 @@
 			*/ 
 		}
 	}
 	function slideEnd() {
-		if (sliding) {
-			sliding = false;
+		if (self.sliding) {
+			self.sliding = false;
 			slideTimer = 0;
 			body.pushAnimation(stopped ? animationStand : animationRun, PLAYER_POSE_TRANSITION);
 			// Restore body's original rotation and scale
 			body.rotation = 0;
@@ -1042,8 +1029,9 @@
 var ROAD_SEGMENT_HEIGHT = 1000;
 var ROAD_SEGMENT_DESTROY = -2;
 var ROAD_SEGMENT_FADEOUT = 0.015;
 var ROAD_MAX_RIVER_SEGMENTS = 1;
+var ROAD_MAX_WALL_SEGMENTS = 1;
 var ROAD_FREE_RUN_COUNT = 5;
 var ROAD_STEP_COUNT = 5;
 var ROAD_STEP_DEFAULT = 10;
 var ROAD_STEP_HEIGHT_BASE = 512;