===================================================================
--- original.js
+++ change.js
@@ -42,9 +42,9 @@
 	self.assetsToRight = ['monkeyToRight', 'monkeyInterRight'];
 	self.assetsToLeft = ['monkeyToLeft', 'monkeyInterLeft'];
 	self.sequenceIndexToCenter = [0, 1, 0];
 	self.sequenceIndexToExtreme = [0, 1, 0, 1, 0];
-	self.assetsToUse = [];
+	self.assetsToUse = self.assetsToUse || [];
 	self.sequenceIndexToUse = []; //Séquence des index des assets du monkey a utiliser
 	self.sequenceIndex = 0; //Index de la séquence des assets du monkey
 	self.actualPositionIndex = 0; //Positions de depart : 0 (XL), 1 (XC), 2 (XR) index du tableau startPoints
 	self.goalPositionIndex = 0; //Positions d'arrivée : 0 (XL), 1 (XC), 2 (XR) index du tableau startPoints
@@ -66,11 +66,13 @@
 		//scoreTest = "actualPositionIndex: " + self.actualPositionIndex + " goalPositionIndex: " + self.goalPositionIndex;
 	}; //fin setMoveToGoalPosition
 	// Function to change the asset
 	self.changeAsset = function (newAssetId, options) {
-		// Remove the existing asset
-		self.removeChild(monkeyAsset);
-		monkeyAsset.destroy();
+		// Remove the existing asset if it exists
+		if (monkeyAsset) {
+			self.removeChild(monkeyAsset);
+			monkeyAsset.destroy();
+		}
 		// Attach the new asset
 		monkeyAsset = self.attachAsset(newAssetId, {
 			anchorX: options && options.anchorX !== undefined ? options.anchorX : 0.5,
 			anchorY: options && options.anchorY !== undefined ? options.anchorY : 0.5
@@ -89,9 +91,9 @@
 				self.assetsToUse = self.assetsToLeft;
 			}
 			self.sequenceIndexToUse = Math.abs(self.actualPositionIndex - self.goalPositionIndex) == 1 ? self.sequenceIndexToCenter : self.sequenceIndexToExtreme;
 			self.ticksBeforeNextPosition = self.ticksToGoToGoalPosition / self.sequenceIndexToUse.length;
-			//self.isMoving = true;
+			self.isMoving = true;
 			self.ticksBeforeNextPosition = self.ticksToGoToGoalPosition / self.sequenceIndexToUse.length;
 			scoreTest = "actualPIx: " + self.actualPositionIndex + " goalPIx: " + self.goalPositionIndex + " assetsToUse: " + self.assetsToUse + " seqIxToUse: " + self.sequenceIndexToUse + "\nticksBeforeNextPosition: " + self.ticksBeforeNextPosition;
 		} else if (self.isMoving) {
 			if (self.isGoingToRight) {
@@ -117,9 +119,9 @@
 			self.isGoingToRight = false;
 			self.isGoingToLeft = false;
 			self.sequenceIndex = 0;
 			self.assetsToUse = [];
-			self.sequenceIndexToUse = [];
+			self.sequenceIndexToUse = self.sequenceIndexToUse || [];
 			if (self.coconutChoosen) {
 				self.coconutChoosen.trajectory.isStarted = true; //On lache la coconut
 				self.coconutChoosen = null;
 			}
@@ -313,9 +315,9 @@
 var sommetParaboleBasse = ScoreZone.height + 400;
 var nbTicksToBounceHight = 230; //Nombre de ticks pour effectuer une parabole haute
 var nbTicksTobounceLow = 220; //Nombre de ticks pour effectuer une parabole basse
 var nbTicksToFall = 200; //Nombre de ticks pour tomber
-var nbTicksBeforeThrow = 2000;
+var nbTicksBeforeThrow = 200;
 var nbTicksLeftBeforeNextThrow = 0;
 var score = 0;
 var scoreTest = 0;
 var startPoints = [XL = game.width / 4, XC = game.width / 2, XR = 3 * game.width / 4]; // Define the startPoints array
@@ -673,9 +675,9 @@
 			if (coconutChoosen == null) {
 				coconutChoosen = chooseNextCoconut();
 				//coconutChoosen.trajectory.isStarted = true;
 				//game.addChild(coconutChoosen);
-				monkey.setMoveToGoalPosition(coconutChoosen, nbTicksLeftBeforeNextThrow);
+				monkey.setMoveToGoalPosition(coconutChoosen, nbTicksBeforeThrow);
 			} else {
 				nbTicksLeftBeforeNextThrow = nbTicksBeforeThrow;
 				coconutChoosen = null;
 			}