===================================================================
--- original.js
+++ change.js
@@ -293,9 +293,9 @@
 		self.rightHand.height = targetPosture.rightHand.h;
 		self.rightHand.rotation = targetPosture.rightHand.r;
 	};
 	self.aiFight = function () {
-		if (LK.ticks % 200 == 0) {
+		if (LK.ticks % 222 == 0) {
 			self.punch(Math.random() < 0.5);
 		}
 	};
 });
@@ -350,8 +350,21 @@
 /**************************************** RING CLASS ************************************** */
 /****************************************************************************************** */ 
 var Ring = Container.expand(function () {
 	var self = Container.call(this);
+	self.limits = [{
+		x: 300,
+		y: 200
+	}, {
+		x: 1800,
+		y: 200
+	}, {
+		x: 300,
+		y: 1750
+	}, {
+		x: 1800,
+		y: 1750
+	}];
 	self.ringAsset = self.attachAsset('ring', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
@@ -381,8 +394,9 @@
 var touchPosition = null;
 var swipeStart = null;
 var swipeEnd = null;
 var isDebug = true;
+var debugMarker;
 /****************************************************************************************** */ 
 /************************************** POSTURES ****************************************** */
 /****************************************************************************************** */ 
 var idlePosture = {
@@ -482,26 +496,41 @@
 	opponent = game.addChild(new Athlete());
 	opponent.x = 1024; // Center horizontally
 	opponent.y = game.height * 0.2; // Center vertically in the middle of the ring
 	opponent.rotation = Math.PI * 0.5;
+	if (isDebug) {
+		// Debug Marker
+		debugMarker = LK.getAsset('debugMarker', {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		game.addChild(debugMarker);
+		debugMarker.x = 1800;
+		debugMarker.y = 1750;
+	}
 }
 /****************************************************************************************** */ 
 /************************************* GAME FUNCTIONS ************************************* */
 /****************************************************************************************** */ 
 function handleHit(attacker, defenser) {
-	if (defenser.isGuarding) {
-		LK.effects.flashScreen(attacker.isPlayer ? 0xaaaaaa : 0xaa0000, 10); // Flash the whole screen red for 0.5 seconds
-		return;
-	}
+	var backDelta = defenser.isGuarding ? 5 : 50;
+	var backHeadDelta = defenser.isGuarding ? 2 : 20;
 	// Player hit reaction: head goes back, flash screen red
 	// Calculate defenser's current direction and move back accordingly
 	var defenserDirection = Math.atan2(defenser.y - attacker.y, defenser.x - attacker.x);
-	defenser.x += Math.cos(defenserDirection) * 50; // Move defenser back in the x direction of current movement
-	defenser.y += Math.sin(defenserDirection) * 50; // Move defenser back in the y direction of current movement
-	defenser.head.y -= 20; // Head returns to normal position
-	LK.effects.flashScreen(attacker.isPlayer ? 0xFFFFFF : 0xFF0000, 100); // Flash the whole screen red for 0.5 seconds
+	// Move defenser back
+	var newX = defenser.x + Math.cos(defenserDirection) * backDelta;
+	var newY = defenser.y + Math.sin(defenserDirection) * backDelta;
+	// TODO : Check if in ring's ropes
+	defenser.x = newX; // Move defenser back in the x direction of current movement
+	defenser.y = newY; // Move defenser back in the y direction of current movement
+	if (!defenser.isGuarding) {
+		LK.effects.flashScreen(attacker.isPlayer ? 0xFFFFFF : 0xFF0000, 100); // Flash the whole screen
+	}
+	// Head back movement
+	defenser.head.y -= backHeadDelta; // Head returns to normal position
 	LK.setTimeout(function () {
-		defenser.head.y += 20; // Head returns to normal position
+		defenser.head.y += backHeadDelta; // Head returns to normal position
 	}, 500);
 }
 /****************************************************************************************** */ 
 /************************************** MAIN GAME LOOP ************************************ */