cocos2d-xの画面の向き(縦横)は設定だけでは済まないのでまとめておく ref: http://qiita.com/tadamatu/items/98a9539ab3dd951489f5

AndroidManifest.xml

<activity android:name="org.cocos2dx.cpp.AppActivity"
                 android:label="@string/app_name"
                 android:screenOrientation="portrait" //★この部分★
　　　　　　　　　　android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
                 android:configChanges="orientation">

RootViewController.mm

// Override to allow orientations other than the default portrait orientation.
// This method is deprecated on ios6
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    //return UIInterfaceOrientationIsLandscape( interfaceOrientation );  //横
    return UIInterfaceOrientationIsPortrait( interfaceOrientation );  //縦
}

// For ios6, use supportedInterfaceOrientations & shouldAutorotate instead
-(NSUInteger) supportedInterfaceOrientations{
#ifdef __IPHONE_6_0
    //return UIInterfaceOrientationMaskAllButUpsideDown;  //横
    return UIInterfaceOrientationMaskPortrait;  //縦
#endif
}