diff --git a/extensions/CCBReader/CCBAnimationManager.cpp b/extensions/CCBReader/CCBAnimationManager.cpp
index e475f80f67..5dd93f8049 100644
--- a/extensions/CCBReader/CCBAnimationManager.cpp
+++ b/extensions/CCBReader/CCBAnimationManager.cpp
@@ -458,10 +458,14 @@ void CCBAnimationManager::setFirstFrame(CCNode *pNode, CCBSequenceProperty *pSeq
 
 CCActionInterval* CCBAnimationManager::getEaseAction(CCActionInterval *pAction, int nEasingType, float fEasingOpt)
 {
-    if (nEasingType == kCCBKeyframeEasingLinear || nEasingType == kCCBKeyframeEasingInstant)
+    if (nEasingType == kCCBKeyframeEasingLinear)
     {
         return pAction;
     }
+    else if (nEasingType == kCCBKeyframeEasingInstant)
+    {
+        return CCBEaseInstant::create(pAction);
+    }
     else if (nEasingType == kCCBKeyframeEasingCubicIn)
     {
         return CCEaseIn::create(pAction, fEasingOpt);
@@ -689,6 +693,8 @@ void CCBAnimationManager::sequenceCompleted()
     }
 }
 
+// Custom actions
+
 /************************************************************
  CCBSetSpriteFrame
  ************************************************************/
@@ -814,4 +820,35 @@ void CCBRotateTo::update(float time)
     ;
 }
 
+/************************************************************
+ CCBEaseInstant
+ ************************************************************/
+CCBEaseInstant* CCBEaseInstant::create(CCActionInterval *pAction)
+{
+    CCBEaseInstant *pRet = new CCBEaseInstant();
+    if (pRet && pRet->initWithAction(pAction))
+    {
+        pRet->autorelease();
+    }
+    else
+    {
+        CC_SAFE_RELEASE_NULL(pRet);
+    }
+    
+    return pRet;
+}
+
+void CCBEaseInstant::update(float dt)
+{
+    if (dt < 0)
+    {
+        m_pInner->update(0);
+    }
+    else
+    {
+        m_pInner->update(1);
+    }
+}
+
+
 NS_CC_EXT_END
diff --git a/extensions/CCBReader/CCBAnimationManager.h b/extensions/CCBReader/CCBAnimationManager.h
index adf22e295b..904d18d924 100644
--- a/extensions/CCBReader/CCBAnimationManager.h
+++ b/extensions/CCBReader/CCBAnimationManager.h
@@ -143,6 +143,14 @@ public:
     virtual void startWithTarget(CCNode *pNode);
 };
 
+class CCBEaseInstant : public CCActionEase
+{
+public:
+    static CCBEaseInstant* create(CCActionInterval *pAction);
+    
+    virtual void update(float dt);
+};
+
 NS_CC_EXT_END
 
 #endif // __CCB_CCBANIMATION_MANAGER_H__