===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,315 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Fighter = Container.expand(function (isPlayer) {
+	var self = Container.call(this);
+	self.isPlayer = isPlayer || false;
+	self.maxHealth = 100;
+	self.health = self.maxHealth;
+	self.isAttacking = false;
+	self.isBlocking = false;
+	self.attackCooldown = 0;
+	self.blockCooldown = 0;
+	self.combo = 0;
+	self.lastAttackTime = 0;
+	var fighterGraphics = self.attachAsset(isPlayer ? 'playerFighter' : 'enemyFighter', {
+		anchorX: 0.5,
+		anchorY: 1.0
+	});
+	self.takeDamage = function (damage) {
+		if (self.isBlocking && LK.ticks - self.lastAttackTime > 10) {
+			damage = damage * 0.3;
+			self.showBlockEffect();
+		}
+		self.health -= damage;
+		if (self.health < 0) self.health = 0;
+		LK.effects.flashObject(self, 0xFF0000, 300);
+		if (self.health <= 0) {
+			self.defeated = true;
+		}
+		return damage;
+	};
+	self.punch = function () {
+		if (self.attackCooldown > 0) return false;
+		self.isAttacking = true;
+		self.attackCooldown = 30;
+		self.lastAttackTime = LK.ticks;
+		var effect = self.parent.addChild(LK.getAsset('punchEffect', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		}));
+		if (self.isPlayer) {
+			effect.x = self.x + 100;
+		} else {
+			effect.x = self.x - 100;
+		}
+		effect.y = self.y - 150;
+		tween(effect, {
+			alpha: 0,
+			scaleX: 2,
+			scaleY: 2
+		}, {
+			duration: 300,
+			onFinish: function onFinish() {
+				effect.destroy();
+			}
+		});
+		LK.getSound('punch').play();
+		return true;
+	};
+	self.kick = function () {
+		if (self.attackCooldown > 0) return false;
+		self.isAttacking = true;
+		self.attackCooldown = 45;
+		self.lastAttackTime = LK.ticks;
+		var effect = self.parent.addChild(LK.getAsset('kickEffect', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		}));
+		if (self.isPlayer) {
+			effect.x = self.x + 120;
+		} else {
+			effect.x = self.x - 120;
+		}
+		effect.y = self.y - 100;
+		tween(effect, {
+			alpha: 0,
+			scaleX: 2,
+			scaleY: 2
+		}, {
+			duration: 400,
+			onFinish: function onFinish() {
+				effect.destroy();
+			}
+		});
+		LK.getSound('kick').play();
+		return true;
+	};
+	self.block = function () {
+		if (self.blockCooldown > 0) return false;
+		self.isBlocking = true;
+		self.blockCooldown = 60;
+		return true;
+	};
+	self.showBlockEffect = function () {
+		var effect = self.parent.addChild(LK.getAsset('blockEffect', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		}));
+		effect.x = self.x;
+		effect.y = self.y - 150;
+		tween(effect, {
+			alpha: 0,
+			scaleX: 1.5,
+			scaleY: 1.5
+		}, {
+			duration: 200,
+			onFinish: function onFinish() {
+				effect.destroy();
+			}
+		});
+		LK.getSound('block').play();
+	};
+	self.update = function () {
+		if (self.attackCooldown > 0) {
+			self.attackCooldown--;
+			if (self.attackCooldown <= 0) {
+				self.isAttacking = false;
+			}
+		}
+		if (self.blockCooldown > 0) {
+			self.blockCooldown--;
+			if (self.blockCooldown <= 0) {
+				self.isBlocking = false;
+			}
+		}
+		if (!self.isPlayer && !self.defeated) {
+			self.aiUpdate();
+		}
+	};
+	self.aiUpdate = function () {
+		if (gameState !== 'fighting') return;
+		var distanceToPlayer = Math.abs(self.x - player.x);
+		var random = Math.random();
+		if (distanceToPlayer < 250) {
+			if (random < 0.02) {
+				self.punch();
+			} else if (random < 0.035) {
+				self.kick();
+			} else if (random < 0.05) {
+				self.block();
+			}
+		}
+	};
+	return self;
+});
+var HealthBar = Container.expand(function (isPlayer) {
+	var self = Container.call(this);
+	self.isPlayer = isPlayer;
+	var background = self.attachAsset('healthBarBg', {
+		anchorX: 0.0,
+		anchorY: 0.0
+	});
+	var fill = self.attachAsset('healthBarFill', {
+		anchorX: 0.0,
+		anchorY: 0.0
+	});
+	self.fill = fill;
+	self.updateHealth = function (health, maxHealth) {
+		var percentage = health / maxHealth;
+		self.fill.width = 600 * percentage;
+		if (percentage > 0.6) {
+			self.fill.tint = 0x00FF00;
+		} else if (percentage > 0.3) {
+			self.fill.tint = 0xFFFF00;
+		} else {
+			self.fill.tint = 0xFF0000;
+		}
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x2C3E50
+});
+
+/**** 
+* Game Code
+****/ 
+var gameState = 'fighting';
+var round = 1;
+var maxRounds = 3;
+var playerWins = 0;
+var enemyWins = 0;
+var comboTimer = 0;
+var lastHitTime = 0;
+var player = game.addChild(new Fighter(true));
+player.x = 512;
+player.y = 2200;
+var enemy = game.addChild(new Fighter(false));
+enemy.x = 1536;
+enemy.y = 2200;
+var playerHealthBar = new HealthBar(true);
+playerHealthBar.x = 200;
+playerHealthBar.y = 100;
+LK.gui.top.addChild(playerHealthBar);
+var enemyHealthBar = new HealthBar(false);
+enemyHealthBar.x = 1248;
+enemyHealthBar.y = 100;
+LK.gui.top.addChild(enemyHealthBar);
+var roundText = new Text2('Round ' + round, {
+	size: 80,
+	fill: 0xFFFFFF
+});
+roundText.anchor.set(0.5, 0);
+LK.gui.top.addChild(roundText);
+var comboText = new Text2('', {
+	size: 60,
+	fill: 0xFFD700
+});
+comboText.anchor.set(0.5, 0);
+comboText.y = 200;
+LK.gui.top.addChild(comboText);
+function checkCombat() {
+	var playerAttackRange = 250;
+	var enemyAttackRange = 250;
+	var distance = Math.abs(player.x - enemy.x);
+	if (player.isAttacking && distance < playerAttackRange && !enemy.defeated) {
+		var damage = 15;
+		if (player.combo > 0) {
+			damage += player.combo * 2;
+		}
+		var actualDamage = enemy.takeDamage(damage);
+		if (actualDamage > damage * 0.8) {
+			player.combo++;
+			comboTimer = 180;
+			LK.setScore(LK.getScore() + damage * player.combo);
+			if (player.combo > 1) {
+				comboText.setText('Combo x' + player.combo);
+			}
+		}
+		LK.getSound('hit').play();
+		lastHitTime = LK.ticks;
+	}
+	if (enemy.isAttacking && distance < enemyAttackRange && !player.defeated) {
+		var damage = 12 + (round - 1) * 3;
+		player.takeDamage(damage);
+		LK.getSound('hit').play();
+	}
+}
+function resetCombo() {
+	player.combo = 0;
+	comboText.setText('');
+}
+function nextRound() {
+	round++;
+	if (round > maxRounds) {
+		if (playerWins > enemyWins) {
+			LK.showYouWin();
+		} else {
+			LK.showGameOver();
+		}
+		return;
+	}
+	player.health = player.maxHealth;
+	enemy.health = enemy.maxHealth;
+	enemy.defeated = false;
+	player.defeated = false;
+	roundText.setText('Round ' + round);
+	gameState = 'fighting';
+	resetCombo();
+}
+function checkRoundEnd() {
+	if (player.defeated && enemyWins < maxRounds) {
+		enemyWins++;
+		LK.setTimeout(nextRound, 2000);
+		gameState = 'roundEnd';
+	} else if (enemy.defeated && playerWins < maxRounds) {
+		playerWins++;
+		LK.setTimeout(nextRound, 2000);
+		gameState = 'roundEnd';
+	}
+	if (playerWins >= 2) {
+		LK.showYouWin();
+	} else if (enemyWins >= 2) {
+		LK.showGameOver();
+	}
+}
+game.down = function (x, y, obj) {
+	if (gameState !== 'fighting' || player.defeated) return;
+	var localPos = game.toLocal(obj.parent.toGlobal(obj.position));
+	if (localPos.x < 1024) {
+		if (localPos.y < 1800) {
+			player.punch();
+		} else if (localPos.y < 2400) {
+			player.kick();
+		} else {
+			player.block();
+		}
+	}
+};
+game.update = function () {
+	if (gameState === 'fighting') {
+		checkCombat();
+		checkRoundEnd();
+		if (comboTimer > 0) {
+			comboTimer--;
+			if (comboTimer <= 0) {
+				resetCombo();
+			}
+		}
+		if (LK.ticks - lastHitTime > 120) {
+			resetCombo();
+		}
+	}
+	playerHealthBar.updateHealth(player.health, player.maxHealth);
+	enemyHealthBar.updateHealth(enemy.health, enemy.maxHealth);
+};
\ No newline at end of file