===================================================================
--- original.js
+++ change.js
@@ -636,9 +636,9 @@
 	piranhaCostText.x = piranhaIcon.x;
 	piranhaCostText.y = piranhaIcon.y + 150;
 	self.addChild(piranhaCostText);
 	// Add cost display under bigcorm icon
-	bigCormCostText = new Text2('$20', {
+	bigCormCostText = new Text2('$15', {
 		size: 80,
 		fill: 0x00FF00
 	});
 	bigCormCostText.anchor.set(0.5, 0);
@@ -710,10 +710,10 @@
 				});
 			}
 		});
 		// Create and drop a new bigcorm from the top
-		if (balance >= 20) {
-			balance -= 20;
+		if (balance >= 15) {
+			balance -= 15;
 			balanceText.setText('$' + balance);
 			var bigCorm = new BigCorm();
 			bigCorm.x = Math.random() * (2048 - 500) + 200; // Random x position within 200 units from both edges
 			bigCorm.y = 750; // Start from a slightly lower position
@@ -854,8 +854,67 @@
 			}
 		}
 	};
 });
+// Monstr class representing a more aggressive shark
+var Monstr = Container.expand(function () {
+	var self = Container.call(this);
+	var monstrGraphics = self.attachAsset('Monstr', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 0; // Health will be set when Monstr is spawned
+	self.speed = Math.random() * 2 + 1; // Random speed for each Monstr
+	self.direction = 1; // Monstr always swim to the right when they appear
+	// Update function to move the Monstr
+	self.update = function () {
+		if (self.x < aquarium.x - aquarium.width / 2 + 100) {
+			self.direction = 1; // Move right
+			monstrGraphics.scaleX = 1; // Ensure Monstr is facing right
+		} else if (self.x > aquarium.x + aquarium.width / 2 - 100) {
+			self.direction = -1; // Move left
+			monstrGraphics.scaleX = -1; // Ensure Monstr is facing left
+		}
+		self.x += self.speed * self.direction;
+		if (self.x < -self.width / 2 || self.x > 2048 + self.width / 2 || self.health <= 0) {
+			self.destroy();
+			game.monstr = null;
+		}
+		// Find the nearest small fish
+		var nearestFish = null;
+		var minDistance = Infinity;
+		var targetFishes = fishes.filter(function (fish) {
+			return true; // Allow Monstr to target both small and big fish
+		});
+		targetFishes.forEach(function (fish) {
+			var distance = Math.sqrt(Math.pow(fish.x - self.x, 2) + Math.pow(fish.y - self.y, 2));
+			if (distance < minDistance) {
+				minDistance = distance;
+				nearestFish = fish;
+			}
+		});
+		if (nearestFish && (self.lastEatTime === undefined || LK.ticks - self.lastEatTime >= 120)) {
+			// Move towards the nearest fish
+			var angle = Math.atan2(nearestFish.y - self.y, nearestFish.x - self.x);
+			self.x += Math.cos(angle) * 4;
+			self.y += Math.sin(angle) * 4;
+			monstrGraphics.scaleX = Math.cos(angle) < 0 ? -1 : 1; // Flip the Monstr based on direction
+			// Check if Monstr intersects with the fish
+			if (self.intersects(nearestFish)) {
+				if (self.lastEatTime === undefined || LK.ticks - self.lastEatTime >= 120) {
+					// Check if 2 seconds have passed
+					var index = fishes.indexOf(nearestFish);
+					if (index !== -1) {
+						nearestFish.destroy(); // Ensure fish is destroyed immediately upon consumption
+						fishes.splice(index, 1);
+					}
+					LK.getSound('emyakula').play(); // Play 'emyakula' sound when Monstr eats a fish
+					self.lastEatTime = LK.ticks; // Update last eat time
+				}
+			}
+		}
+	};
+});
 // Pirand class representing a piranha skeleton
 var Pirand = Container.expand(function () {
 	var self = Container.call(this);
 	var pirandGraphics = self.attachAsset('pirand', {
@@ -1221,13 +1280,33 @@
 			}, 500);
 		}
 	} else if (countdown === 0) {
 		countdown += 60; // Extend the countdown by 60 seconds
-		for (var i = 0; i < akulaCount; i++) {
-			var akula = new Akula();
-			akula.x = 2048 + akula.width / 2; // Position on the right side of the screen
-			akula.y = Math.random() * (2732 - 200) + 100; // Random y position within screen bounds
-			game.addChild(akula);
+		if (akulaCount >= 3) {
+			// Remove 3 Akulas and spawn a Monstr
+			var akulasToRemove = 3;
+			var totalHealth = 0;
+			game.children = game.children.filter(function (child) {
+				if (child instanceof Akula && akulasToRemove > 0) {
+					totalHealth += child.health;
+					child.destroy();
+					akulasToRemove--;
+					return false;
+				}
+				return true;
+			});
+			var monstr = new Monstr();
+			monstr.x = 2048 + monstr.width / 2; // Position on the right side of the screen
+			monstr.y = Math.random() * (2732 - 200) + 100; // Random y position within screen bounds
+			monstr.health = totalHealth; // Set Monstr's health to the total health of removed Akulas
+			game.addChild(monstr);
+		} else {
+			for (var i = 0; i < akulaCount; i++) {
+				var akula = new Akula();
+				akula.x = 2048 + akula.width / 2; // Position on the right side of the screen
+				akula.y = Math.random() * (2732 - 200) + 100; // Random y position within screen bounds
+				game.addChild(akula);
+			}
 		}
 		akulaCount++; // Increase the number of sharks for the next spawn
 		// Increase health of all Akula instances based on the number of Akulas spawned
 		game.children.forEach(function (child) {