===================================================================
--- original.js
+++ change.js
@@ -117,9 +117,9 @@
 		self.leftLeg.y += (self.targetPosture.leftLeg.y - self.leftLeg.y) * speed;
 	};
 	self.jump = function () {
 		globalSpeedPerLine[self.lineIndex] = globalSpeedPerLine[self.lineIndex] * 0.9;
-		if (self.isOnGround && Date.now() - self.lastJumpTime > self.interJumpDelayMs) {
+		if (self.isOnGround) {
 			self.isOnGround = false;
 			self.speedY = self.jumpSpeed;
 			self.lastJumpTime = Date.now();
 			if (self.lineIndex == 3) {
@@ -134,10 +134,10 @@
 				self.leftArm.height = 200;
 				self.trunk.rotation = 0.125;
 				self.runAnim();
 			} else {
-				self.speedY += self.gravity * Math.abs(globalSpeedPerLine[0] / 10); //self.lineIndex
-				self.y += self.speedY * Math.abs(globalSpeedPerLine[0] / 10); //self.lineIndex
+				self.speedY += self.gravity * Math.abs(globalSpeedPerLine[self.lineIndex] / 10); //self.lineIndex
+				self.y += self.speedY * Math.abs(globalSpeedPerLine[self.lineIndex] / 10); //self.lineIndex
 				//log("self.speedY=" + self.speedY, " / self.y=" + self.y);
 				if (self.y >= linesGroundLevels[self.lineIndex]) {
 					self.y = linesGroundLevels[self.lineIndex];
 					self.isOnGround = true;
@@ -157,30 +157,35 @@
 		self.updatePosture();
 		/* ********************************************************** ATHLETE AI **************************************************** */
 		if (self.isAi) {
 			var nextX = self.x;
-			if (athlete.isFalling) {
-				if (self.lineIndex == 3) {
-					log("Player fall add=" + self.speedX);
+			if (!self.isFalling) {
+				if (athlete.isFalling) {
+					if (self.lineIndex == 3) {
+						log("Player falls add=" + self.speedX);
+					}
+					//nextX += self.speedX;
+					nextX -= globalSpeedPerLine[self.lineIndex];
+				} else {
+					nextX += globalSpeedPerLine[self.lineIndex] * 0.05 * Math.random();
 				}
-				nextX += self.speedX;
-			} else {
-				nextX += globalSpeedPerLine[self.lineIndex] * 0.05 * Math.random();
+				if (!athlete.isFalling && !athlete.isOnGround) {
+					// Little advance when player plays jumping
+					if (self.lineIndex == 3) {
+						log("Player jumping add=" + self.speedX * 0.1);
+					}
+					nextX += self.speedX * 0.1;
+				}
 			}
-			if (!athlete.isOnGround) {
-				// Little advance when player plays jumping
-				nextX += self.speedX * 0.1;
-			}
 			// Auto jump hurdles in obstacles[self.lineIndex]
 			if (self.isOnGround) {
-				for (var i = 0; i < obstacles[self.lineIndex].length; i++) {
-					var distance = obstacles[self.lineIndex][i].x - nextX;
+				if (obstacles[self.lineIndex].length) {
+					var distance = obstacles[self.lineIndex][0].x - nextX;
 					if (self.lineIndex == 3) {
 						log("distance=" + distance);
 					}
 					if (distance > 0 && distance <= 250 + self.speedX) {
 						self.jump();
-						break; // Jump once for the closest obstacle within range
 					}
 				}
 			}
 			self.x = nextX;
@@ -348,24 +353,23 @@
 var athlete;
 var opponents = [];
 var numberOfOpponents = 3; // Adjust based on the actual number of opponents in the game
 var groundLevel = 2732 - 200; // Ground level set 200px from the bottom
-var linesGroundLevels = [groundLevel - 200, groundLevel - 420, groundLevel - 640]; // Ground level set 200px from the bottom
-var groundLevelLine1 = 2732 - 200; // Ground level set 200px from the bottom
+var linesGroundLevels = []; // Ground level set 200px from the bottom
 var numberOfLines = 1 + numberOfOpponents;
-var numberOfObstacles = 3;
-var obstacles = [[], []];
+var numberOfObstacles = 20;
+var obstacles = [[]];
 var obstacleSpawnTicker = 0;
 var obstacleSpawnRate = 180; // Spawn an obstacle every 2 seconds //TEMP DEBUG
+var obstacleSpawnDistanceRate = 1.5; // Spawn an obstacle 1 screen * 1.5
 var obstacleJustPassed = false;
 var track;
 var track2;
 var track3;
 var track4;
 var scoreTxt;
-var globalSpeed = -10; //-10; // Global speed for tracks and obstacles min = -4
 var globalSpeedIncreaseStep = 5;
-var globalSpeedPerLine = [-10, -10];
+var globalSpeedPerLine = []; // Global speed for tracks and obstacles default -10 / min = -4
 var colorsArray = [0x1188FF, 0xFF0000, 0x00FF00, 0xFFFF00, 0xFF00FF, 0x00FFFF, 0xFFFFFF, 0xFF8811];
 var isDebug = true;
 var debugMarker;
 // UI
@@ -572,30 +576,27 @@
 		track4.update();
 	}
 }
 function spawnObstacles() {
-	/*
-	// Spawn obstacles - V1 : Each obstacle is spawned at a specific rate
-	obstacleSpawnTicker += athlete.isFalling ? 0 : 1;
-	if (obstacleSpawnTicker >= obstacleSpawnRate) {
-	obstacleSpawnTicker = 0;
-	for (var line = 0; line < numberOfLines; line++) {
-	obstacles[line] = obstacles[line] || [];
-	var newObstacle = new Obstacle(line);
-	newObstacle.x = 2048 + 100 * line; // Start from the right edge      
-	newObstacle.y = groundLevel + 200 - 220 * line;
-	obstacles[line].push(newObstacle);
-	game.addChild(newObstacle);
+	// Set obstacles for line 0
+	obstacles[0] = [];
+	for (var i = 0; i < numberOfObstacles; i++) {
+		// 3 obstacles per line
+		var newObstacle = new Obstacle(0);
+		newObstacle.x = 2048 * obstacleSpawnDistanceRate * (i + 1); // Start from the right edge      
+		//log("Obstacle "+ 0+","+i+" +> x="+ newObstacle.x);
+		newObstacle.y = groundLevel + 200;
+		obstacles[0].push(newObstacle);
+		game.addChild(newObstacle);
 	}
-	}
-	*/
-	// Spawn obstacles - V2 : All obstacles are spawned at the same time
-	for (var line = 0; line < numberOfLines; line++) {
+	// Set obstacles for other lines
+	for (var line = 1; line < numberOfLines; line++) {
 		obstacles[line] = [];
 		for (var i = 0; i < numberOfObstacles; i++) {
 			// 3 obstacles per line
 			var newObstacle = new Obstacle(line);
-			newObstacle.x = (2048 + 90 * line) * (i + 1); // Start from the right edge      
+			newObstacle.x = obstacles[0][i].x + 100 * line; // Start from the right edge      
+			//log("Obstacle "+ line+","+i+" +> x="+ newObstacle.x);
 			newObstacle.y = groundLevel + 200 - 220 * line;
 			obstacles[line].push(newObstacle);
 			game.addChild(newObstacle);
 		}
@@ -633,10 +634,10 @@
 }
 function checkForCollisions() {
 	for (var line = 0; line < numberOfLines; line++) {
 		obstacles[line] = obstacles[line] || [];
-		for (var i = 0; i < obstacles[line].length; i++) {
-			var obstacle = obstacles[line][i];
+		if (obstacles[line].length) {
+			var obstacle = obstacles[line][0]; // Check only the first obstacle in the line
 			if (line === 0) {
 				if (athlete.intersects(obstacle.centralRod)) {
 					athlete.isFalling = true;
 					athlete.isOnGround = false;
@@ -670,9 +671,9 @@
 			athlete.restore();
 		}, 1000); // Delay game over to allow fall animation to be seen
 	}
 	opponents.forEach(function (opponent, index) {
-		if (opponent.isFalling && !opponent.hasFlashed) {
+		if (opponent.isFalling && !opponent.hasFlashed && !opponent.isOnGround) {
 			opponent.hasFlashed = true;
 			LK.setTimeout(function () {
 				globalSpeedPerLine[opponent.lineIndex] = -10;
 				opponent.restore();