diff --git a/src/Core/Crawl/iworld.cpp b/src/Core/Crawl/iworld.cpp
index 8286d56..c2acae0 100644
--- a/src/Core/Crawl/iworld.cpp
+++ b/src/Core/Crawl/iworld.cpp
@@ -35,6 +35,11 @@ IControl *IWorld::initUserInterface() const {
 
 void IWorld::render(unsigned int tbfMsec) {
 
+    if (!_running) {
+        std::this_thread::sleep_for(std::chrono::milliseconds(1000));
+        return;
+    }
+
     _ItemsMutex.lock();
 
     for (auto i = _items.begin(); i != _items.end(); ++i) {
@@ -77,6 +82,8 @@ bool IWorld::start() {
 
     worldChanged(*_worldRules->begin());
     setTargetFps(60);
+    setRunning(true);
+
     return true;
 }
 
@@ -109,15 +116,7 @@ IWorldItem *IWorld::generate(const QString &objectType) const {
 }
 
 bool IWorld::stop() {
-    start();
-
-    setWorldStatus(WorldStatus::Background);
-    _player->setControl(dynamic_cast<IControl*>(_backgroundAI));
-
-    _backgroundAI->startAI();
-
-    setTargetFps(30);
-
+    setRunning(false);
     return true;
 }
 
@@ -233,6 +232,7 @@ void IWorld::removeItem(int id, QList<int> *removedObjectsList) {
 }
 
 void IWorld::reset() {
+
     if (_player) {
         delete _player;
         _player = nullptr;
@@ -309,6 +309,14 @@ void IWorld::removeAnyItemFromGroup(const QString &group,
     removeItem(anyObjectId, removedObjectsList);
 }
 
+bool IWorld::running() const {
+    return _running;
+}
+
+void IWorld::setRunning(bool newRunning) {
+    _running = newRunning;
+}
+
 int IWorld::targetFps() const {
     return _targetFps;
 }
@@ -357,7 +365,7 @@ void IWorld::setCameraReleativePosition(const QVector3D &newCameraReleativePosit
 }
 
 void IWorld::handleStop() {
-    stop();
+    runAsBackGround();
 }
 
 const QVector3D &IWorld::cameraReleativePosition() const {
@@ -400,3 +408,14 @@ void IWorld::setWorldStatus(int newWorldStatus) {
 const QString &IWorld::hdr() const {
     return _hdrMap;
 }
+
+void IWorld::runAsBackGround() {
+    start();
+
+    setWorldStatus(WorldStatus::Background);
+    _player->setControl(dynamic_cast<IControl*>(_backgroundAI));
+
+    _backgroundAI->startAI();
+
+    setTargetFps(30);
+}
diff --git a/src/Core/Crawl/iworld.h b/src/Core/Crawl/iworld.h
index a5dd534..2eb1dfd 100644
--- a/src/Core/Crawl/iworld.h
+++ b/src/Core/Crawl/iworld.h
@@ -222,6 +222,12 @@ public:
      */
     const QString &hdr() const;
 
+    /**
+     * @brief runAsBackGround This method run this world as a backgroud.
+     * The player start new game and sets new control from the backgroundAI method.
+     */
+    void runAsBackGround();
+
 signals:
     /**
      * @brief sigGameFinished This signal emit when game are finished
@@ -375,6 +381,19 @@ private:
     bool prepare();
     void reset();
 
+
+    /**
+     * @brief running This varibale check in render function if the running is true then render loop are working correctly
+     * @return
+     */
+    bool running() const;
+
+    /**
+     * @brief setRunning
+     * @param newRunning
+     */
+    void setRunning(bool newRunning);
+
     /**
      * @brief worldChanged This method generate diff for the qml
      * @param objects This is list of object on lvl
@@ -447,6 +466,7 @@ private:
     QHash<QString, std::function<IWorldItem*()>> _registeredTypes;
 
     int _targetFps = 60;
+    bool _running = false;
 
     // engine
     friend class Engine;
diff --git a/src/Core/Crawl/iworlditem.cpp b/src/Core/Crawl/iworlditem.cpp
index 4475555..a0a49d7 100644
--- a/src/Core/Crawl/iworlditem.cpp
+++ b/src/Core/Crawl/iworlditem.cpp
@@ -31,12 +31,16 @@ const IWorldItem *IWorldItem::getPlayer() const {
 }
 
 void IWorldItem::render(unsigned int) {
-    if (_playerObject->position().x() - position().x() >
-            _world->cameraReleativePosition().z() * 2) {
-        setX(_playerObject->position().x() + _world->cameraReleativePosition().z() * 4);
+    if (_playerObject->position().x() - _world->cameraReleativePosition().z() >
+            position().x()) {
 
-        float dY = rand() % static_cast<int>(_world->cameraReleativePosition().z() * 2
-                                             - _world->cameraReleativePosition().z());
+        float dX = _world->cameraReleativePosition().z() * 2 +
+                (rand() % static_cast<int>(_world->cameraReleativePosition().z()));
+
+        setX(_playerObject->position().x() + dX);
+
+        float dY = (rand() % static_cast<int>(_world->cameraReleativePosition().z() * 4)
+                                             - _world->cameraReleativePosition().z() * 2);
 
         setY(_playerObject->position().y() + dY);
     }
diff --git a/src/Core/Crawl/snakeitem.cpp b/src/Core/Crawl/snakeitem.cpp
index cc458cf..a94d1a8 100644
--- a/src/Core/Crawl/snakeitem.cpp
+++ b/src/Core/Crawl/snakeitem.cpp
@@ -26,7 +26,11 @@ void SnakeItem::render(unsigned int tbfMsec) {
     auto ratationVector = (_prevObject->position() - position());
 
     if (auto claster = static_cast<Snake*>(parentClaster())) {
-        if (ratationVector.length() > claster->lengthBetwinItems()) {
+        float ratationLength = ratationVector.length();
+
+        if (ratationLength > claster->lengthBetwinItems() * 10) {
+            setposition(_prevObject->position());
+        } else if (ratationLength > claster->lengthBetwinItems()) {
             setMovableVector(ratationVector.normalized() * claster->currentMovableVector().length());
         }
     }
diff --git a/src/Core/private/defaultbackgroundai.cpp b/src/Core/private/defaultbackgroundai.cpp
index 32b57da..9c7e998 100644
--- a/src/Core/private/defaultbackgroundai.cpp
+++ b/src/Core/private/defaultbackgroundai.cpp
@@ -11,6 +11,8 @@
 DefaultBackgroundAI::DefaultBackgroundAI() {
     _timer = new QTimer();
     _timer->setInterval(1000);
+
+    connect(_timer, &QTimer::timeout, this, &DefaultBackgroundAI::handleTimerTriger);
 }
 
 DefaultBackgroundAI::~DefaultBackgroundAI() {
@@ -27,7 +29,7 @@ void DefaultBackgroundAI::stopAI() {
 }
 
 void DefaultBackgroundAI::handleTimerTriger() {
-    _timer->setInterval(rand() % 1000  + 10);
+    _timer->setInterval(rand() % 2000  + 200);
 
     emit userTap();
 }
diff --git a/src/Core/private/engine.cpp b/src/Core/private/engine.cpp
index 5171f71..cdbc819 100644
--- a/src/Core/private/engine.cpp
+++ b/src/Core/private/engine.cpp
@@ -46,9 +46,16 @@ void Engine::setWorld(IWorld *world) {
     _currentWorld = world;
     emit worldChanged();
 
-    prepareNewWorld();
+    if (!prepareNewWorld()) {
+        QuasarAppUtils::Params::log("Failed to init world. World name: " + _currentWorld->name(),
+                                    QuasarAppUtils::Error);
+
+        _currentWorld = nullptr;
+        return;
+    }
 
     startRenderLoop();
+    _currentWorld->runAsBackGround();
 }
 
 void Engine::setScane(QObject *newScane) {
@@ -129,20 +136,18 @@ void Engine::setPrepareLvlProgress(int newPrepareLvlProgress) {
     emit prepareLvlProgressChanged();
 }
 
-void Engine::prepareNewWorld() {
+bool Engine::prepareNewWorld() {
     if (!_currentWorld->prepare()) {
-        QuasarAppUtils::Params::log("Failed to init world. World name: " + _currentWorld->name(),
-                                    QuasarAppUtils::Error);
-
-        _currentWorld = nullptr;
-        return;
+        return false;
     }
 
     if (!_currentWorld->userInterface()->init()) {
-        return;
+        return false;
     }
 
     setMenu(_currentWorld->userInterface());
+
+    return true;
 }
 
 void Engine::renderLoop() {
diff --git a/src/Core/private/engine.h b/src/Core/private/engine.h
index 173365e..b4cc171 100644
--- a/src/Core/private/engine.h
+++ b/src/Core/private/engine.h
@@ -132,7 +132,7 @@ signals:
 
 private:
     void setPrepareLvlProgress(int newPrepareLvlProgress);
-    void prepareNewWorld();
+    bool prepareNewWorld();
     void renderLoop();
 
 
diff --git a/src/CrawlTestLvl b/src/CrawlTestLvl
index 0f022f4..9f06054 160000
--- a/src/CrawlTestLvl
+++ b/src/CrawlTestLvl
@@ -1 +1 @@
-Subproject commit 0f022f42093a1e5311cbcd13c9ed40b54163c251
+Subproject commit 9f06054ae836016881dc132d336c5da5bb3dca6c