/**** 
* Classes
****/ 
// Class for Market Signal
var MarketSignal = Container.expand(function () {
	var self = Container.call(this);
	self.isBear = Math.random() > 0.5;
	var color = self.isBear ? 0xff0000 : 0x00ff00; // Red for bear, green for bull
	var signalGraphics = self.attachAsset('signal', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: color
	});
	self.update = function () {
		self.x -= 5; // Move left
		if (self.x < -100) {
			self.destroy();
		}
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Class for the Player
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.yVelocity = 0;
	self.isJumping = false;
	self.update = function () {
		if (self.isJumping) {
			self.y += self.yVelocity;
			self.yVelocity += 0.5; // Gravity effect
			if (self.y >= 200) {
				// Ground level
				self.y = 200;
				self.isJumping = false;
			} else if (self.y <= 0) {
				// Top of the screen
				self.y = 0;
				self.yVelocity = 0; // Stop upward movement
			}
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.yVelocity = -15; // Jump strength
		}
	};
});
// Class for Shark
var Shark = Container.expand(function () {
	var self = Container.call(this);
	var sharkGraphics = self.attachAsset('shark', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.x += 3; // Move right
		if (self.x > 2048) {
			self.x = -100; // Reset position
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 //Init game with black background 
});

/**** 
* Game Code
****/ 
// Initialize player
var player = new Player();
player.x = 2048 / 2; // Center of the screen horizontally
player.y = 2732 / 2; // Center of the screen vertically
game.addChild(player);
// Initialize shark
var shark = new Shark();
shark.y = 2500; // Bottom of the screen
game.addChild(shark);
// Array to hold market signals
var marketSignals = [];
// Function to create a new market signal
function createMarketSignal() {
	var signal = new MarketSignal();
	signal.x = 2048; // Start from the right
	signal.y = 2732 / 2; // Center of the screen
	marketSignals.push(signal);
	game.addChild(signal);
}
// Handle game updates
game.update = function () {
	player.update();
	shark.update();
	// Update market signals
	for (var i = marketSignals.length - 1; i >= 0; i--) {
		marketSignals[i].update();
		if (marketSignals[i].intersects(player)) {
			if (marketSignals[i].isBear) {
				// Player stepped on a bear market signal
				marketSignals[i].destroy();
				marketSignals.splice(i, 1);
				// Trigger game over
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
			} else {
				// Player stepped on a bull market signal
				LK.setScore(LK.getScore() + 1);
			}
		}
	}
	// Create new market signal every 100 ticks
	if (LK.ticks % 100 === 0) {
		createMarketSignal();
	}
};
// Handle player jump
game.down = function (x, y, obj) {
	player.jump();
};

===================================================================
--- original.js
+++ change.js
@@ -36,8 +36,12 @@
 			if (self.y >= 200) {
 				// Ground level
 				self.y = 200;
 				self.isJumping = false;
+			} else if (self.y <= 0) {
+				// Top of the screen
+				self.y = 0;
+				self.yVelocity = 0; // Stop upward movement
 			}
 		}
 	};
 	self.jump = function () {