diff --git a/samples/Cpp/SimpleGame/Classes/AppDelegate.cpp b/samples/Cpp/SimpleGame/Classes/AppDelegate.cpp
index a000179f00..c1f7b09f90 100644
--- a/samples/Cpp/SimpleGame/Classes/AppDelegate.cpp
+++ b/samples/Cpp/SimpleGame/Classes/AppDelegate.cpp
@@ -1,9 +1,8 @@
 #include "AppDelegate.h"
 #include "HelloWorldScene.h"
 
-using namespace cocos2d;
+USING_NS_CC;
 
-namespace simplegame {
 
 AppDelegate::AppDelegate() {
 
@@ -69,5 +68,3 @@ void AppDelegate::applicationWillEnterForeground() {
     // if you use SimpleAudioEngine, it must resume here
     // CocosDenshion::SimpleAudioEngine::sharedEngine()->resumeBackgroundMusic();
 }
-
-}
diff --git a/samples/Cpp/SimpleGame/Classes/AppDelegate.h b/samples/Cpp/SimpleGame/Classes/AppDelegate.h
index 02996b6aa5..18ee8aeb63 100644
--- a/samples/Cpp/SimpleGame/Classes/AppDelegate.h
+++ b/samples/Cpp/SimpleGame/Classes/AppDelegate.h
@@ -3,8 +3,6 @@
 
 #include "cocos2d.h"
 
-namespace simplegame {
-
 /**
 @brief    The cocos2d Application.
 
@@ -36,6 +34,5 @@ public:
     virtual void applicationWillEnterForeground();
 };
 
-}
-
 #endif // _APP_DELEGATE_H_
+
diff --git a/samples/Cpp/SimpleGame/Classes/GameOverScene.cpp b/samples/Cpp/SimpleGame/Classes/GameOverScene.cpp
index a365b982e6..cc3ffe25c0 100644
--- a/samples/Cpp/SimpleGame/Classes/GameOverScene.cpp
+++ b/samples/Cpp/SimpleGame/Classes/GameOverScene.cpp
@@ -28,8 +28,6 @@
 
 using namespace cocos2d;
 
-namespace simplegame {
-
 bool GameOverScene::init()
 {
 	if( Scene::init() )
@@ -93,5 +91,3 @@ GameOverLayer::~GameOverLayer()
 		_label = NULL;
 	}
 }
-
-}
diff --git a/samples/Cpp/SimpleGame/Classes/GameOverScene.h b/samples/Cpp/SimpleGame/Classes/GameOverScene.h
index c64c742e14..a0a994ec6f 100644
--- a/samples/Cpp/SimpleGame/Classes/GameOverScene.h
+++ b/samples/Cpp/SimpleGame/Classes/GameOverScene.h
@@ -28,8 +28,6 @@
 
 #include "cocos2d.h"
 
-namespace simplegame {
-
 class GameOverLayer : public cocos2d::LayerColor
 {
 public:
@@ -54,6 +52,4 @@ public:
     CC_SYNTHESIZE_READONLY(GameOverLayer*, _layer, Layer);
 };
 
-}
-
 #endif // _GAME_OVER_SCENE_H_
diff --git a/samples/Cpp/SimpleGame/Classes/HelloWorldScene.cpp b/samples/Cpp/SimpleGame/Classes/HelloWorldScene.cpp
index 7fa03486c3..9b7cc00c3a 100644
--- a/samples/Cpp/SimpleGame/Classes/HelloWorldScene.cpp
+++ b/samples/Cpp/SimpleGame/Classes/HelloWorldScene.cpp
@@ -4,8 +4,6 @@
 
 using namespace cocos2d;
 
-namespace simplegame {
-
 HelloWorld::~HelloWorld()
 {
 	if (_targets)
@@ -312,5 +310,3 @@ void HelloWorld::registerWithTouchDispatcher()
 	// TouchDispatcher::sharedDispatcher()->addTargetedDelegate(this,0,true);
     Director::getInstance()->getTouchDispatcher()->addStandardDelegate(this,0);
 }
-
-}
diff --git a/samples/Cpp/SimpleGame/Classes/HelloWorldScene.h b/samples/Cpp/SimpleGame/Classes/HelloWorldScene.h
index d89280aacb..7a48f48bad 100644
--- a/samples/Cpp/SimpleGame/Classes/HelloWorldScene.h
+++ b/samples/Cpp/SimpleGame/Classes/HelloWorldScene.h
@@ -5,8 +5,6 @@
 
 //#include "SimpleAudioEngine.h"
 
-namespace simplegame {
-
 class HelloWorld : public cocos2d::LayerColor
 {
 public:
@@ -46,6 +44,4 @@ protected:
 
 };
 
-}
-
 #endif  // __HELLOWORLD_SCENE_H__