self.score = 5;

    self.score++

-(void) createObject {

    Score *scoreEntity = (Score *)[NSEntityDescription
                         insertNewObjectForEntityForName:@"Score"
                         inManagedObjectContext:self.managedObjectContext];

    SpaceshipScene *spaceshipSceneReference = [[SpaceshipScene alloc] init];


    id points = [NSNumber numberWithInteger: spaceshipSceneReference.score];

    scoreEntity.points = points;
    scoreEntity.playerName = @"Joe";


    NSError *error = nil;
    // Saves the managedObjectContext
    if (! [[self managedObjectContext] save:&error] ) {
        NSLog(@"An error! %@", error);
    }
}

AppDelegate *appDelegateReference = [[AppDelegate alloc] init];
        [appDelegateReference createObject];

-(void)fetchObject {

    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
    NSEntityDescription *entity = [NSEntityDescription  entityForName:@"Score"inManagedObjectContext:self.managedObjectContext];
    [fetchRequest setEntity:entity];

    // Sort fetched data
    NSSortDescriptor *sortByPoints = [[NSSortDescriptor alloc] initWithKey:@"points" ascending:NO];
    // Put them in an array
    NSArray *sortDescriptor = [[NSArray alloc] initWithObjects:sortByPoints, nil];

    // Pass the array to the fetch request
    [fetchRequest setSortDescriptors:sortDescriptor];


    NSError *error = nil;
    NSArray *fetchedObjects = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error];
    if (fetchedObjects == nil) {
        NSLog(@"Problem %@", error);
    }

    for (Score *s in fetchedObjects) {
        NSLog(@" %@ %d",s.playerName, [s.points integerValue]);
    }
}

AppDelegate *appDelegateReference = [[AppDelegate alloc] init];
    [appDelegateReference fetchObject];