Ques: I had added the view using the code:
[[[Director sharedDirector] openGLView] addSubview:myView];
But how can I will back to Game scene?
if you are asking how to attach UIKit views and such to a cocos2d-iphone project, you just have to do it like:
[[[Director sharedDirector] window] addSubview:myView];
Updated to cocos 0.7 and now this is:
[[[Director sharedDirector] openGLView] addSubview:myView];