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

/**** 
* Classes
****/ 
var Basketball = Container.expand(function () {
	var self = Container.call(this);
	var basketballGraphics = self.attachAsset('basketball', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.velocityY = 0;
	self.gravity = 0.8;
	self.jumpPower = -25;
	self.isGrounded = false;
	self.groundY = 0;
	self.jump = function () {
		if (self.isGrounded) {
			self.velocityY = self.jumpPower;
			self.isGrounded = false;
			LK.getSound('jump').play();
		}
	};
	self.update = function () {
		// Apply gravity
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		// Check ground collision
		if (self.y >= self.groundY) {
			self.y = self.groundY;
			self.velocityY = 0;
			self.isGrounded = true;
		}
		// Simple rotation based on vertical velocity
		basketballGraphics.rotation = self.velocityY * 0.1;
	};
	return self;
});
var Obstacle = Container.expand(function (type) {
	var self = Container.call(this);
	self.obstacleType = type || 'hurdle';
	self.speed = 8;
	self.scored = false;
	var obstacleGraphics;
	if (self.obstacleType === 'hurdle') {
		obstacleGraphics = self.attachAsset('hurdle', {
			anchorX: 0.5,
			anchorY: 1.0
		});
	} else if (self.obstacleType === 'barrier') {
		obstacleGraphics = self.attachAsset('barrier', {
			anchorX: 0.5,
			anchorY: 1.0
		});
	} else if (self.obstacleType === 'gap') {
		obstacleGraphics = self.attachAsset('gap', {
			anchorX: 0.5,
			anchorY: 1.0
		});
	}
	self.update = function () {
		self.x -= self.speed;
	};
	return self;
});
var Road = Container.expand(function () {
	var self = Container.call(this);
	var roadGraphics = self.attachAsset('road', {
		anchorX: 0,
		anchorY: 1.0
	});
	self.speed = 8;
	self.update = function () {
		self.x -= self.speed;
		if (self.x <= -2048) {
			self.x = 0;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
var groundLevel = 2400;
var gameSpeed = 8;
var baseSpeed = 8;
var speedIncrease = 0.02;
var obstacles = [];
var roads = [];
var basketball;
var scoreTxt;
var speedTxt;
var obstacleSpawnTimer = 0;
var obstacleSpawnInterval = 120; // frames between obstacles
var lastObstacleX = 2048;
// Create score display
scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create speed display
speedTxt = new Text2('Speed: 1.0x', {
	size: 40,
	fill: 0xFFFF00
});
speedTxt.anchor.set(1.0, 0);
speedTxt.y = 80;
LK.gui.topRight.addChild(speedTxt);
// Create scrolling road
for (var i = 0; i < 3; i++) {
	var road = game.addChild(new Road());
	road.x = i * 2048;
	road.y = groundLevel;
	roads.push(road);
}
// Create basketball
basketball = game.addChild(new Basketball());
basketball.x = 300;
basketball.y = groundLevel;
basketball.groundY = groundLevel;
// Touch controls
game.down = function (x, y, obj) {
	basketball.jump();
};
// Spawn obstacle function
function spawnObstacle() {
	var obstacleTypes = ['hurdle', 'barrier', 'gap'];
	var randomType = obstacleTypes[Math.floor(Math.random() * obstacleTypes.length)];
	var obstacle = new Obstacle(randomType);
	obstacle.x = 2200;
	obstacle.y = groundLevel;
	obstacle.speed = gameSpeed;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
// Main game loop
game.update = function () {
	// Increase speed gradually
	gameSpeed = baseSpeed + LK.getScore() * speedIncrease;
	// Update speed display
	var speedMultiplier = (gameSpeed / baseSpeed).toFixed(1);
	speedTxt.setText('Speed: ' + speedMultiplier + 'x');
	// Update road speed
	for (var r = 0; r < roads.length; r++) {
		roads[r].speed = gameSpeed;
	}
	// Spawn obstacles
	obstacleSpawnTimer++;
	var adjustedSpawnInterval = Math.max(60, obstacleSpawnInterval - LK.getScore() * 0.5);
	if (obstacleSpawnTimer >= adjustedSpawnInterval) {
		spawnObstacle();
		obstacleSpawnTimer = 0;
	}
	// Update and check obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.speed = gameSpeed;
		// Check if obstacle is off screen
		if (obstacle.x < -200) {
			obstacle.destroy();
			obstacles.splice(i, 1);
			continue;
		}
		// Check collision with basketball
		if (basketball.intersects(obstacle)) {
			// Flash screen red
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		// Check if basketball passed obstacle (scoring)
		if (!obstacle.scored && obstacle.x < basketball.x - 50) {
			obstacle.scored = true;
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText('Score: ' + LK.getScore());
			LK.getSound('score').play();
			// Check win condition
			if (LK.getScore() >= 999) {
				LK.effects.flashScreen(0x00ff00, 2000);
				LK.showYouWin();
				return;
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -13,9 +13,9 @@
 		anchorY: 1.0
 	});
 	self.velocityY = 0;
 	self.gravity = 0.8;
-	self.jumpPower = -18;
+	self.jumpPower = -25;
 	self.isGrounded = false;
 	self.groundY = 0;
 	self.jump = function () {
 		if (self.isGrounded) {