/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var Car = Container.expand(function (direction, speed, lane) {
	var self = Container.call(this);
	var carGraphics = self.attachAsset('car', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.direction = direction; // 1 for right, -1 for left
	self.speed = speed;
	self.lane = lane;
	// Position car based on direction
	if (self.direction === 1) {
		self.x = -60; // Start from left
	} else {
		self.x = 2048 + 60; // Start from right
	}
	self.y = 2732 - 250 - lane * 150; // Position in lane using new road positioning
	self.update = function () {
		self.x += self.speed * self.direction;
		// Remove car when it goes off screen
		if (self.direction === 1 && self.x > 2048 + 100) {
			self.removeFromParent = true;
		} else if (self.direction === -1 && self.x < -100) {
			self.removeFromParent = true;
		}
	};
	return self;
});
var Chicken = Container.expand(function () {
	var self = Container.call(this);
	var chickenGraphics = self.attachAsset('chicken', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.moveStep = 100;
	self.isMoving = false;
	self.targetY = 2732 - 100; // Start near bottom
	self.moveForward = function () {
		if (self.isMoving) return;
		self.isMoving = true;
		var newY = self.y - self.moveStep;
		// Animate movement
		tween(self, {
			y: newY
		}, {
			duration: 200,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.isMoving = false;
				// Check if crossed a road
				if (self.y < 150) {
					// Crossed all roads, reset and increase score
					crossedRoad();
				}
			}
		});
		LK.getSound('move').play();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x4CAF50
});

/**** 
* Game Code
****/ 
var chicken;
var cars = [];
var roads = [];
var gameSpeed = 1;
var carSpawnTimer = 0;
var carSpawnRate = 30; // frames between car spawns - slightly reduced cars
var crossedRoads = 0;
// Create score display
var scoreTxt = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0.5);
scoreTxt.x = 1024; // Center horizontally
scoreTxt.y = 50; // Position at the top end of roads
game.addChild(scoreTxt);
// Initialize score from storage
var currentTotalScore = storage.totalScore || 0;
LK.setScore(currentTotalScore);
scoreTxt.setText(currentTotalScore.toString());
// Create roads
function createRoads() {
	// Create roads starting from a gap above starting position
	var startY = 2732 - 250; // Start roads with gap from starting position
	var totalRoads = 12; // Extended roads further
	for (var i = 0; i < totalRoads; i++) {
		var roadY = startY - i * 150;
		if (roadY >= 0) {
			var road = LK.getAsset('road', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 1024,
				y: roadY
			});
			roads.push(road);
			game.addChild(road);
			// Add road lines
			var roadLine = LK.getAsset('roadLine', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: 1024,
				y: roadY
			});
			game.addChild(roadLine);
		}
	}
}
// Create chicken
function createChicken() {
	chicken = game.addChild(new Chicken());
	chicken.x = 1024; // Center horizontally
	chicken.y = 2732 - 100; // Start near bottom
}
// Spawn a car
function spawnCar() {
	var lane = Math.floor(Math.random() * roads.length);
	var direction = Math.random() > 0.5 ? 1 : -1;
	// Create variable speeds - some cars are slower
	var speedVariation = Math.random();
	var baseSpeed;
	if (speedVariation < 0.3) {
		// 30% chance for slower cars
		baseSpeed = (2 + Math.random() * 2) * 6; // Slower cars
	} else {
		// 70% chance for normal speed cars
		baseSpeed = (3 + Math.random() * 4) * 6; // Normal speed cars
	}
	var speed = baseSpeed * gameSpeed;
	var car = new Car(direction, speed, lane);
	// Mark if this is a slow car for collision handling
	car.isSlow = speedVariation < 0.3;
	cars.push(car);
	game.addChild(car);
}
// Check collisions
function checkCollisions() {
	for (var i = 0; i < cars.length; i++) {
		var car = cars[i];
		if (chicken.intersects(car)) {
			if (car.isSlow) {
				// Slow car collision - injury instead of death
				LK.getSound('hit').play();
				// Create injury effect - flash red and shake
				LK.effects.flashScreen(0xff4444, 300);
				tween(chicken, {
					x: chicken.x + 20
				}, {
					duration: 50,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						tween(chicken, {
							x: chicken.x - 40
						}, {
							duration: 100,
							easing: tween.easeInOut,
							onFinish: function onFinish() {
								tween(chicken, {
									x: chicken.x + 20
								}, {
									duration: 50,
									easing: tween.easeIn
								});
							}
						});
					}
				});
				// Remove the slow car after collision
				car.removeFromParent = true;
			} else {
				// Fast car collision - game over
				LK.getSound('hit').play();
				LK.effects.flashScreen(0xff0000, 500);
				LK.setTimeout(function () {
					LK.showGameOver();
				}, 500);
				return;
			}
		}
	}
}
// Handle successful road crossing
function crossedRoad() {
	crossedRoads++;
	LK.setScore(crossedRoads);
	scoreTxt.setText(crossedRoads.toString());
	// Check if completed all roads (reached the end)
	if (chicken.y <= 50) {
		// Completed all roads - give points immediately and reset to start
		var completionBonus = 10;
		var totalScore = (storage.totalScore || 0) + crossedRoads + completionBonus;
		storage.totalScore = totalScore;
		LK.setScore(totalScore);
		scoreTxt.setText(totalScore.toString());
		// Flash screen gold for completion
		LK.effects.flashScreen(0xffd700, 500);
		// Reset to beginning
		chicken.y = 2732 - 100;
		crossedRoads = 0;
		gameSpeed = 1;
		carSpawnRate = 20;
	} else {
		// Normal road crossing - move forward
		chicken.y = 2732 - 100;
		// Increase difficulty
		gameSpeed += 0.1;
		if (carSpawnRate > 30) {
			carSpawnRate -= 2;
		}
		// Flash screen green for success
		LK.effects.flashScreen(0x00ff00, 300);
	}
}
// Initialize game elements
createRoads();
createChicken();
// Game controls
game.down = function (x, y, obj) {
	if (chicken && !chicken.isMoving) {
		chicken.moveForward();
	}
};
// Main game loop
game.update = function () {
	// Spawn cars
	carSpawnTimer++;
	if (carSpawnTimer >= carSpawnRate) {
		spawnCar();
		carSpawnTimer = 0;
	}
	// Clean up cars that are off screen
	for (var i = cars.length - 1; i >= 0; i--) {
		var car = cars[i];
		if (car.removeFromParent) {
			car.destroy();
			cars.splice(i, 1);
		}
	}
	// Check collisions
	checkCollisions();
};

===================================================================
--- original.js
+++ change.js
@@ -133,26 +133,68 @@
 // Spawn a car
 function spawnCar() {
 	var lane = Math.floor(Math.random() * roads.length);
 	var direction = Math.random() > 0.5 ? 1 : -1;
-	var baseSpeed = (3 + Math.random() * 4) * 6; // 6x speed increase (3x faster than current)
+	// Create variable speeds - some cars are slower
+	var speedVariation = Math.random();
+	var baseSpeed;
+	if (speedVariation < 0.3) {
+		// 30% chance for slower cars
+		baseSpeed = (2 + Math.random() * 2) * 6; // Slower cars
+	} else {
+		// 70% chance for normal speed cars
+		baseSpeed = (3 + Math.random() * 4) * 6; // Normal speed cars
+	}
 	var speed = baseSpeed * gameSpeed;
 	var car = new Car(direction, speed, lane);
+	// Mark if this is a slow car for collision handling
+	car.isSlow = speedVariation < 0.3;
 	cars.push(car);
 	game.addChild(car);
 }
 // Check collisions
 function checkCollisions() {
 	for (var i = 0; i < cars.length; i++) {
 		var car = cars[i];
 		if (chicken.intersects(car)) {
-			// Game over
-			LK.getSound('hit').play();
-			LK.effects.flashScreen(0xff0000, 500);
-			LK.setTimeout(function () {
-				LK.showGameOver();
-			}, 500);
-			return;
+			if (car.isSlow) {
+				// Slow car collision - injury instead of death
+				LK.getSound('hit').play();
+				// Create injury effect - flash red and shake
+				LK.effects.flashScreen(0xff4444, 300);
+				tween(chicken, {
+					x: chicken.x + 20
+				}, {
+					duration: 50,
+					easing: tween.easeOut,
+					onFinish: function onFinish() {
+						tween(chicken, {
+							x: chicken.x - 40
+						}, {
+							duration: 100,
+							easing: tween.easeInOut,
+							onFinish: function onFinish() {
+								tween(chicken, {
+									x: chicken.x + 20
+								}, {
+									duration: 50,
+									easing: tween.easeIn
+								});
+							}
+						});
+					}
+				});
+				// Remove the slow car after collision
+				car.removeFromParent = true;
+			} else {
+				// Fast car collision - game over
+				LK.getSound('hit').play();
+				LK.effects.flashScreen(0xff0000, 500);
+				LK.setTimeout(function () {
+					LK.showGameOver();
+				}, 500);
+				return;
+			}
 		}
 	}
 }
 // Handle successful road crossing