return to collectionView from detail view

Question

I have an app that I load a GameScene form a CollectionView. I load the view just fine, but when I'm done I can't seem to be able to return to the collectionView.

I have tried

[self dismissModalViewControllerAnimated:YES];
and 
[GameScene dismissModalViewControllerAnimated:YES];
and
[collectionViewController dismissModalViewControllerAnimated:YES];

but they all say No Visible @Interface For viewController declares the selector dismissModalViewControllerAnimated:

Here is the code where I load the GameScene from the collectionView

-(void) collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {



    if (indexPath.row==0) {
         UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    UIViewController *vc = [sb instantiateViewControllerWithIdentifier:@"GameSceneOne"];


    vc.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
    NSLog(@"mycell.image1.image:%@",myCell.image1.image);

    [self presentViewController:vc animated:YES completion:NULL];

    }}

Any Ideals of how to dismiss the gameScene and return to the CollectionView?