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

/**** 
* Classes
****/ 
var StopButton = Container.expand(function () {
	var self = Container.call(this);
	var buttonGraphics = self.attachAsset('stopButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.down = function (x, y, obj) {
		stopProduction();
	};
	return self;
});
var TunaCan = Container.expand(function (isDefective) {
	var self = Container.call(this);
	self.isDefective = isDefective || false;
	self.isClicked = false;
	self.speed = 10;
	var canGraphics = self.attachAsset(self.isDefective ? 'defectCan' : 'goodCan', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add visual indicator for defective cans
	if (self.isDefective) {
		canGraphics.alpha = 0.8;
	}
	self.update = function () {
		self.x += self.speed;
	};
	self.down = function (x, y, obj) {
		if (self.isDefective && !self.isClicked) {
			self.isClicked = true;
			LK.getSound('click').play();
			self.visible = false;
			defectsRemoved++;
			updateDefectStreak();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x34495e
});

/**** 
* Game Code
****/ 
// Game variables
var cans = [];
var currentQuota = 10;
var goodCansProduced = 0;
var defectsRemoved = 0;
var consecutiveDefects = 0;
var gameSpeed = 1;
var spawnTimer = 0;
var spawnRate = 60; // frames between spawns
var isProductionRunning = true;
var level = 1;
// UI Elements
var quotaText = new Text2('Quota: 0/0', {
	size: 60,
	fill: 0xFFFFFF
});
quotaText.anchor.set(0.5, 0);
LK.gui.top.addChild(quotaText);
var levelText = new Text2('Level: 1', {
	size: 50,
	fill: 0xFFFFFF
});
levelText.anchor.set(0, 0);
levelText.x = 150;
levelText.y = 50;
LK.gui.topLeft.addChild(levelText);
var defectStreakText = new Text2('Consecutive Defects: 0', {
	size: 40,
	fill: 0xFF6B35
});
defectStreakText.anchor.set(0.5, 0);
defectStreakText.y = 80;
LK.gui.top.addChild(defectStreakText);
// Conveyor belt
var conveyorBelt = game.addChild(LK.getAsset('conveyorBelt', {
	anchorX: 0.5,
	anchorY: 0.5
}));
conveyorBelt.x = 1024;
conveyorBelt.y = 1400;
// Stop button
var stopButton = game.addChild(new StopButton());
stopButton.x = 1024;
stopButton.y = 1600;
// Stop button label
var stopButtonText = new Text2('STOP PRODUCTION', {
	size: 40,
	fill: 0xFFFFFF
});
stopButtonText.anchor.set(0.5, 0.5);
stopButtonText.x = stopButton.x;
stopButtonText.y = stopButton.y;
game.addChild(stopButtonText);
function spawnCan() {
	if (!isProductionRunning) {
		return;
	}
	var isDefective = Math.random() < 0.3; // 30% chance of defect
	var can = new TunaCan(isDefective);
	can.x = -100;
	can.y = conveyorBelt.y;
	can.speed = 2 + gameSpeed * 0.5;
	cans.push(can);
	game.addChild(can);
}
function updateDefectStreak() {
	consecutiveDefects = 0;
	defectStreakText.setText('Consecutive Defects: ' + consecutiveDefects);
}
function checkConsecutiveDefects() {
	var recentCans = cans.slice(-3);
	if (recentCans.length >= 3) {
		var allDefective = true;
		for (var i = 0; i < 3; i++) {
			if (!recentCans[i].isDefective || recentCans[i].isClicked) {
				allDefective = false;
				break;
			}
		}
		if (allDefective) {
			consecutiveDefects = 3;
			defectStreakText.setText('Consecutive Defects: ' + consecutiveDefects);
			// Auto-stop production
			LK.setTimeout(function () {
				if (isProductionRunning) {
					stopProduction();
				}
			}, 100);
		}
	}
}
function stopProduction() {
	if (!isProductionRunning) {
		return;
	}
	isProductionRunning = false;
	// Check if quota was met
	var quotaMet = goodCansProduced >= currentQuota && goodCansProduced <= currentQuota + 2;
	var defectControl = consecutiveDefects >= 3;
	if (quotaMet || defectControl) {
		// Success
		LK.getSound('success').play();
		var points = quotaMet ? 100 + level * 10 : 50;
		if (defectControl) {
			points += 25;
		}
		LK.setScore(LK.getScore() + points);
		// Next level
		level++;
		currentQuota += 5;
		gameSpeed += 0.2;
		spawnRate = Math.max(30, spawnRate - 2);
		// Flash screen green
		LK.effects.flashScreen(0x27ae60, 500);
		// Reset for next level
		LK.setTimeout(function () {
			resetLevel();
		}, 1000);
	} else {
		// Failure
		LK.getSound('fail').play();
		LK.effects.flashScreen(0xe74c3c, 1000);
		LK.showGameOver();
	}
}
function resetLevel() {
	// Clear all cans
	for (var i = cans.length - 1; i >= 0; i--) {
		cans[i].destroy();
	}
	cans = [];
	// Reset counters
	goodCansProduced = 0;
	defectsRemoved = 0;
	consecutiveDefects = 0;
	isProductionRunning = true;
	// Update UI
	updateUI();
}
function updateUI() {
	quotaText.setText('Quota: ' + goodCansProduced + '/' + currentQuota);
	levelText.setText('Level: ' + level);
	defectStreakText.setText('Consecutive Defects: ' + consecutiveDefects);
}
// Initialize UI
updateUI();
game.update = function () {
	if (!isProductionRunning) {
		return;
	}
	// Spawn cans
	spawnTimer++;
	if (spawnTimer >= spawnRate) {
		spawnTimer = 0;
		spawnCan();
	}
	// Update cans and check for removal
	for (var i = cans.length - 1; i >= 0; i--) {
		var can = cans[i];
		// Remove cans that are off screen
		if (can.x > 2148) {
			if (!can.isDefective && !can.isClicked) {
				goodCansProduced++;
			}
			can.destroy();
			cans.splice(i, 1);
			continue;
		}
		// Check if unclicked defective cans passed through
		if (can.x > 2048 && can.isDefective && !can.isClicked) {
			checkConsecutiveDefects();
		}
	}
	// Update UI
	updateUI();
	// Check win condition
	if (goodCansProduced >= currentQuota + 5) {
		// Over-production penalty
		LK.getSound('fail').play();
		LK.effects.flashScreen(0xe74c3c, 1000);
		LK.showGameOver();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -20,9 +20,9 @@
 var TunaCan = Container.expand(function (isDefective) {
 	var self = Container.call(this);
 	self.isDefective = isDefective || false;
 	self.isClicked = false;
-	self.speed = 7;
+	self.speed = 10;
 	var canGraphics = self.attachAsset(self.isDefective ? 'defectCan' : 'goodCan', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});