diff --git a/spine-cocos2d-objc/src/spine/SkeletonRenderer.h b/spine-cocos2d-objc/src/spine/SkeletonRenderer.h
index 181b47bf0..f35e94cae 100644
--- a/spine-cocos2d-objc/src/spine/SkeletonRenderer.h
+++ b/spine-cocos2d-objc/src/spine/SkeletonRenderer.h
@@ -39,6 +39,7 @@
 	bool _debugSlots;
 	bool _debugBones;
 	bool _premultipliedAlpha;
+    bool _skipVisibilityCheck;
 	ccBlendFunc _blendFunc;
 	CCDrawNode* _drawNode;
 	bool _ownsSkeletonData;
@@ -85,6 +86,7 @@
 @property (nonatomic, readonly) spSkeleton* skeleton;
 @property (nonatomic) bool debugSlots;
 @property (nonatomic) bool debugBones;
+@property (nonatomic) bool skipVisibilityCheck;
 @property (nonatomic) spBone* rootBone;
 
 @end
diff --git a/spine-cocos2d-objc/src/spine/SkeletonRenderer.m b/spine-cocos2d-objc/src/spine/SkeletonRenderer.m
index 41eddfc38..5d9f279f4 100644
--- a/spine-cocos2d-objc/src/spine/SkeletonRenderer.m
+++ b/spine-cocos2d-objc/src/spine/SkeletonRenderer.m
@@ -99,7 +99,11 @@ static const unsigned short quadTriangles[6] = {0, 1, 2, 2, 3, 0};
 
 	spSkeletonJson* json = spSkeletonJson_create(atlas);
 	json->scale = scale;
-	spSkeletonData* skeletonData = spSkeletonJson_readSkeletonDataFile(json, [skeletonDataFile UTF8String]);
+    spSkeletonData* skeletonData = nil;
+    
+    @synchronized(self.class) {
+        spSkeletonJson_readSkeletonDataFile(json, [skeletonDataFile UTF8String]);
+    }
 	NSAssert(skeletonData, ([NSString stringWithFormat:@"Error reading skeleton data file: %@\nError: %s", skeletonDataFile, json->error]));
 	spSkeletonJson_dispose(json);
 	if (!skeletonData) return 0;
@@ -113,13 +117,19 @@ static const unsigned short quadTriangles[6] = {0, 1, 2, 2, 3, 0};
 	self = [super init];
 	if (!self) return nil;
 
-	_atlas = spAtlas_createFromFile([atlasFile UTF8String], 0);
+    @synchronized(self.class) {
+        _atlas = spAtlas_createFromFile([atlasFile UTF8String], 0);
+    }
 	NSAssert(_atlas, ([NSString stringWithFormat:@"Error reading atlas file: %@", atlasFile]));
 	if (!_atlas) return 0;
 
 	spSkeletonJson* json = spSkeletonJson_create(_atlas);
 	json->scale = scale;
-	spSkeletonData* skeletonData = spSkeletonJson_readSkeletonDataFile(json, [skeletonDataFile UTF8String]);
+    spSkeletonData* skeletonData;
+    
+    @synchronized(self.class) {
+        skeletonData = spSkeletonJson_readSkeletonDataFile(json, [skeletonDataFile UTF8String]);
+    }
 	NSAssert(skeletonData, ([NSString stringWithFormat:@"Error reading skeleton data file: %@\nError: %s", skeletonDataFile, json->error]));
 	spSkeletonJson_dispose(json);
 	if (!skeletonData) return 0;
@@ -217,7 +227,7 @@ static const unsigned short quadTriangles[6] = {0, 1, 2, 2, 3, 0};
 			CGSize size = texture.contentSize;
 			GLKVector2 center = GLKVector2Make(size.width / 2.0, size.height / 2.0);
 			GLKVector2 extents = GLKVector2Make(size.width / 2.0, size.height / 2.0);
-			if (CCRenderCheckVisbility(transform, center, extents)) {
+			if (_skipVisibilityCheck || CCRenderCheckVisbility(transform, center, extents)) {
 				CCRenderBuffer buffer = [renderer enqueueTriangles:(trianglesCount / 3) andVertexes:verticesCount withState:self.renderState globalSortOrder:0];
 				for (int i = 0; i * 2 < verticesCount; ++i) {
 					CCVertex vertex;