diff --git a/seminar13_polymorphism/arkanoid/arkanoid.cpp b/seminar13_polymorphism/arkanoid/arkanoid.cpp
index 55e8b73..8256e4c 100644
--- a/seminar13_polymorphism/arkanoid/arkanoid.cpp
+++ b/seminar13_polymorphism/arkanoid/arkanoid.cpp
@@ -16,19 +16,23 @@ void Arkanoid::addRandomBonus(sf::Vector2f position)
     int max_rand = 10000;
     if ((rand() % max_rand) * 1.0f / max_rand < m_bonusProbability) 
     {
-        m_bonuses.push_back(new TripleBallBonus(position));
-    }
-    if ((rand() % max_rand) * 1.0f / max_rand < m_bonusProbability) 
-    {
-        m_bonuses.push_back(new EnlargePaddleBonus(position));
-    }
-    if ((rand() % max_rand) * 1.0f / max_rand < m_bonusProbability) 
-    {
-        m_bonuses.push_back(new ShrinkPaddleBonus(position));
-    }
-    if ((rand() % max_rand) * 1.0f / max_rand < m_bonusProbability) 
-    {
-        m_bonuses.push_back(new SlowingBonus(position));
+        int max = 4; int min = 1;
+        int range = max - min + 1;
+        int num = rand() % range + min;
+        switch (num) {
+            case 1:
+                  m_bonuses.push_back(new TripleBallBonus(position));
+                  break;        
+            case 2:
+                  m_bonuses.push_back(new EnlargePaddleBonus(position));
+                  break;
+            case 3:
+                  m_bonuses.push_back(new ShrinkPaddleBonus(position));
+                  break;
+            case 4:
+                  m_bonuses.push_back(new SlowingBonus(position));
+                  break;
+        }
     }
 }
 
@@ -87,6 +91,11 @@ void Arkanoid::addBall(const Ball& ball)
         m_balls.push_back(ball);
 }
 
+bool Arkanoid::isMaxBalls()
+{
+    return m_balls.size() == kMaxNumBalls - 1;
+}
+
 // Эта функция вызывается каждый кадр
 void Arkanoid::update(const sf::RenderWindow& window, float dt)
 {
@@ -114,6 +123,7 @@ void Arkanoid::update(const sf::RenderWindow& window, float dt)
     // Если шариков нет, то переходи в режим начала игры и уменьшаем кол-во жизней
     if (m_gameState == GameState::running && m_balls.size() == 0)
     {
+        m_effects.clear();
         m_gameState = GameState::stuck;
         m_numLives--;
     }
@@ -154,7 +164,6 @@ void Arkanoid::update(const sf::RenderWindow& window, float dt)
     /* Обработка эффектов */
     for (auto it = m_effects.begin(); it != m_effects.end();)
     {
-        std::cout << "meow1" << std::endl;
         if ((*it)->isExpired(m_time))
         {
             (*it)->deactivate(*this);
diff --git a/seminar13_polymorphism/arkanoid/arkanoid.hpp b/seminar13_polymorphism/arkanoid/arkanoid.hpp
index 5a1e68f..46b2523 100644
--- a/seminar13_polymorphism/arkanoid/arkanoid.hpp
+++ b/seminar13_polymorphism/arkanoid/arkanoid.hpp
@@ -74,6 +74,7 @@ public:
 
     void draw(sf::RenderWindow& window);
     void onMousePressed(sf::Event& event);
+    bool isMaxBalls();
     
     // Класс бонус должен быть дружественным, так как он может менять внутреннее состояние игры
     friend class Bonus;
diff --git a/seminar13_polymorphism/arkanoid/ball.hpp b/seminar13_polymorphism/arkanoid/ball.hpp
index 115313e..2bca550 100644
--- a/seminar13_polymorphism/arkanoid/ball.hpp
+++ b/seminar13_polymorphism/arkanoid/ball.hpp
@@ -13,9 +13,6 @@ struct Ball
     sf::Vector2f position;
     sf::Vector2f velocity;
 
-    /* Every bit is responsible for ball being affected by some effect */
-    char affectedBy = 0;
-
     Ball(float radius, sf::Vector2f position, sf::Vector2f velocity);
 
     void update(float dt);
diff --git a/seminar13_polymorphism/arkanoid/bonus.cpp b/seminar13_polymorphism/arkanoid/bonus.cpp
index 641af55..389e658 100644
--- a/seminar13_polymorphism/arkanoid/bonus.cpp
+++ b/seminar13_polymorphism/arkanoid/bonus.cpp
@@ -53,17 +53,48 @@ void TripleBallBonus::activate(Arkanoid& game)
     int numBalls = game.m_balls.size();
     std::list<Ball>::iterator it = game.m_balls.begin();
 
+    bool isSlowed = false;
+    bool toApply = true;
+    Effect* slowing_effect = nullptr;
+    for (auto it = game.m_effects.begin(); it != game.m_effects.end();) {
+        if ((*it)->effectId == 0) {
+            isSlowed = true;
+            slowing_effect = *it;
+            break;
+        }
+        it++;
+    }
     for (int i = 0; i < numBalls; i++)
     {
-        float angle = rand() % 1000 * (2 * M_PI / 1000);
-        float vx = Ball::initialVelocity * sin(angle);
-        float vy = Ball::initialVelocity * cos(angle);
-        game.addBall({game.m_initialBall.radius, (*it).position, {vx, vy}});
+        float angle, vx, vy;
+        if (game.isMaxBalls()) {
+            toApply = false;
+        }
 
-        angle = rand() % 1000 * (2 * M_PI / 1000);
-        vx = Ball::initialVelocity * sin(angle);
-        vy = Ball::initialVelocity * cos(angle);
-        game.addBall({game.m_initialBall.radius, (*it).position, {vx, vy}});
+        if (toApply) {
+            angle = rand() % 1000 * (2 * M_PI / 1000);
+            vx = Ball::initialVelocity * sin(angle);
+            vy = Ball::initialVelocity * cos(angle);
+            game.addBall({game.m_initialBall.radius, (*it).position, {vx, vy}});
+            
+            if (isSlowed) {
+                slowing_effect->activate(game.m_balls.back()); 
+            }
+        }
+
+        if (game.isMaxBalls()) {
+            toApply = false;
+        }
+
+        if (toApply) {
+            angle = rand() % 1000 * (2 * M_PI / 1000);
+            vx = Ball::initialVelocity * sin(angle);
+            vy = Ball::initialVelocity * cos(angle);
+            game.addBall({game.m_initialBall.radius, (*it).position, {vx, vy}});
+            if (isSlowed) {
+                slowing_effect->activate(game.m_balls.back()); 
+            }
+        }
 
         it++;
     }
@@ -90,7 +121,9 @@ void EnlargePaddleBonus::draw(sf::RenderWindow& window) const
 
 void EnlargePaddleBonus::activate(Arkanoid& game)
 {
-   game.m_paddle.size.x *= 1.5; 
+   if (game.m_paddle.size.x < 300) {
+       game.m_paddle.size.x *= 1.5; 
+   }
 }
 
 EnlargePaddleBonus::~EnlargePaddleBonus() {}
@@ -113,7 +146,9 @@ void ShrinkPaddleBonus::draw(sf::RenderWindow& window) const
 }
 void ShrinkPaddleBonus::activate(Arkanoid& game)
 {
-   game.m_paddle.size.x *= 0.8; 
+   if (game.m_paddle.size.x > 40) {
+        game.m_paddle.size.x *= 0.8;
+   }
 }
 
 ShrinkPaddleBonus::~ShrinkPaddleBonus() {}
@@ -137,8 +172,19 @@ void SlowingBonus::draw(sf::RenderWindow& window) const
 }
 void SlowingBonus::activate(Arkanoid& game)
 {
-    game.m_effects.push_back(new SlowingEffect(game.m_time, 10));
-    game.m_effects.back()->activate(game);
+    bool isAlreadySlowed = false;
+    for (auto it = game.m_effects.begin(); it != game.m_effects.end();) {
+        if ((*it)->effectId == 0) {
+            (*it)->mDuration += mDuration;
+            isAlreadySlowed = true;
+            break;
+        }
+        it++;
+    }
+    if (!isAlreadySlowed) {
+        game.m_effects.push_back(new SlowingEffect(game.m_time, mDuration));
+        game.m_effects.back()->activate(game);
+    }
 }
 
 SlowingBonus::~SlowingBonus() {}
@@ -147,7 +193,7 @@ SlowingBonus::~SlowingBonus() {}
  * Effects
  * */
 
-Effect::Effect(double start_time, double duration) : mStartTime(start_time), mDuration(duration) {};
+Effect::Effect(char id, double start_time, double duration) : effectId(id), mStartTime(start_time), mDuration(duration) {};
 
 bool Effect::isExpired(double time) {
     if (mStartTime + mDuration > time)
@@ -155,27 +201,30 @@ bool Effect::isExpired(double time) {
     return true;
 } 
 
-SlowingEffect::SlowingEffect(double start_time, double duration) : Effect(start_time, duration) {};
+SlowingEffect::SlowingEffect(double start_time, double duration) : Effect(0, start_time, duration) {};
 
 void SlowingEffect::activate(Arkanoid& game) {
-    std::cout << "Activated slow motion" << std::endl;
     for (Ball& ball : game.m_balls)
     {
-        //std::cout << "meow" << std::endl;
-        if (!(ball.affectedBy & 0b00000001)) {
-            ball.affectedBy |= 0b00000001;
+        //if (!(ball.affectedBy & 0b00000001)) {
+            //ball.affectedBy |= 0b00000001;
             ball.velocity = sf::Vector2f{ball.velocity.x * mSlowingFactor, ball.velocity.y * mSlowingFactor};
-        }
+        //}
     }
 }
+void SlowingEffect::activate(Ball& ball) {
+        //if (!(ball.affectedBy & 0b00000001)) {
+            //ball.affectedBy |= 0b00000001;
+            ball.velocity = sf::Vector2f{ball.velocity.x * mSlowingFactor, ball.velocity.y * mSlowingFactor};
+}
+
 void SlowingEffect::deactivate(Arkanoid& game) {
-    std::cout << "Deactivated slow motion" << std::endl;
     for (Ball& ball : game.m_balls)
     {
-        if (ball.affectedBy & 0b00000001) {
+        //if (ball.affectedBy & 0b00000001) {
             ball.velocity = sf::Vector2f{ball.velocity.x / mSlowingFactor, ball.velocity.y / mSlowingFactor};
-            ball.affectedBy &= 0b11111110;
-        }
+        //    ball.affectedBy &= 0b11111110;
+        //}
     }
 }
 
diff --git a/seminar13_polymorphism/arkanoid/bonus.hpp b/seminar13_polymorphism/arkanoid/bonus.hpp
index 3333330..6f410c2 100644
--- a/seminar13_polymorphism/arkanoid/bonus.hpp
+++ b/seminar13_polymorphism/arkanoid/bonus.hpp
@@ -66,20 +66,28 @@ public:
 
 class Effect {
 private:
+    char effectId;
     double mStartTime;
     double mDuration;
 public:
-    Effect(double start_time, double duration); 
+    Effect(char id, double start_time, double duration); 
     virtual void activate(Arkanoid& game) {};
+    virtual void activate(Ball& ball) {};
     virtual void deactivate(Arkanoid& game) {};
     bool isExpired(double time);
+
+    friend class SlowingBonus;
+    friend class TripleBallBonus;
+    friend class Arkanoid;
 };
 
 class SlowingEffect : public Effect {
 private:
     double mSlowingFactor = 0.1;
+    char id = 0;
 public:
     SlowingEffect(double start_time, double duration);
     void activate(Arkanoid& game);
+    void activate(Ball& ball);
     void deactivate(Arkanoid& game); 
 };