diff --git a/306204wy29.js b/306204wy29.js
index 75db768..334326d 100644
--- a/306204wy29.js
+++ b/306204wy29.js
@@ -8,21 +8,33 @@ if (!this.initialized) {
 }
 
 if (data.keyCode === GameLib.System.Input.KEY_UP) {
+	if (this.direction.y === -1) {
+		return;
+	}
 	this.direction.y = 1;
 	this.direction.x = 0;	
 }
 
 if (data.keyCode === GameLib.System.Input.KEY_DOWN) {
+	if (this.direction.y === 1) {
+		return;
+	}
 	this.direction.y = -1;
 	this.direction.x = 0;	
 }
 
 if (data.keyCode === GameLib.System.Input.KEY_LEFT) {
+	if (this.direction.x === 1) {
+		return;
+	}
 	this.direction.y = 0;
 	this.direction.x = -1;	
 }
 
 if (data.keyCode === GameLib.System.Input.KEY_RIGHT) {
+	if (this.direction.x === -1) {
+		return;
+	}
 	this.direction.y = 0;
 	this.direction.x = 1;	
 }