===================================================================
--- original.js
+++ change.js
@@ -153,18 +153,13 @@
 			forearm.y -= punchDistance * 1.5; // Move forearm up for punch
 			forearm.rotation *= 0.5; //= -Math.PI * 0.1; //-Math.PI * 0.2
 			hand.x += 5; // Move hand up for punch
 			hand.y -= punchDistance * 2; // Move hand up for punch
-			// Add head movement to mimic boxer's dodge and hit reaction
-			self.head.x += isLeft ? 15 : -15; // Move head opposite to punching arm for dodge
-			self.head.width *= 0.95; // Simulate head tilt by narrowing the width for dodge
-			self.head.height *= 1.05; // Increase head height to simulate dodge
-			self.head.rotation -= isLeft ? -0.1 : 0.1; // Tilt head for dodge
-			// Implement hit reaction
-			LK.setTimeout(function () {
-				self.head.x += isLeft ? -30 : 30; // Move head back to simulate hit reaction
-				LK.effects.flashScreen(0xff0000, 500); // Flash the whole screen red for 500ms
-			}, 100);
+			// Add head movement to mimic boxer's dodge
+			self.head.x += isLeft ? 15 : -15; // Move head opposite to punching arm
+			self.head.width *= 0.95; // Simulate head tilt by narrowing the width
+			self.head.height *= 1.05; // Reset head width to simulate head tilt back
+			self.head.rotation -= isLeft ? -0.1 : 0.1; // Simulate head tilt by narrowing the width
 		}, 100);
 		LK.setTimeout(function () {
 			/* 
 			arm.height -= punchDistance;
@@ -298,7 +293,14 @@
 // Game update function
 game.update = function () {
 	// This section has been removed to prevent redundant player movement handling.
 	// Spawn enemies
-	// Check for collision with player
-	// Removed game over trigger to prevent ending the game on player collision with enemy
+	// Check for collision between player's hand and enemy's head
+	if (player.leftHand.intersects(enemy.head) || player.rightHand.intersects(enemy.head)) {
+		// Player hit reaction: head goes back, flash screen red
+		enemy.head.y -= 20; // Head goes back
+		LK.effects.flashScreen(0xff0000, 500); // Flash the whole screen red for 0.5 seconds
+		LK.setTimeout(function () {
+			enemy.head.y += 20; // Head returns to normal position
+		}, 500);
+	}
 };
\ No newline at end of file