diff --git a/Doodler.h b/Doodler.h
index 83d3ab0..917004d 100644
--- a/Doodler.h
+++ b/Doodler.h
@@ -42,17 +42,17 @@ class Doodler : public IEntity
     sf::Vector2f m_position = sf::Vector2f(WINDOW_WIDTH / 2, m_floor - m_size.x / 2 - m_outlineThickness);
     sf::RectangleShape m_shape;
 
-    const Lambda<bool(float, float)> m_areCloseAbsolute = [&](float lhs, float rhs) -> bool {
+    const std::function<bool(float, float)> m_areCloseAbsolute = [&](float lhs, float rhs) -> bool {
         constexpr float tolerance = 0.001f;
         return std::abs(lhs - rhs) < tolerance;
     };
 
-    const Lambda<bool(float, float)> m_areCloseRelative = [&](float lhs, float rhs) -> bool {
+    const std::function<bool(float, float)> m_areCloseRelative = [&](float lhs, float rhs) -> bool {
         constexpr float tolerance = 0.001f;
         return std::abs((lhs - rhs) / rhs) < tolerance;
     };
 
-    const Lambda<bool(float, float)> m_areFuzzyEqual = [&](float lhs, float rhs) -> bool {
+    const std::function<bool(float, float)> m_areFuzzyEqual = [&](float lhs, float rhs) -> bool {
         if (std::abs(rhs) > 1.f)
         {
             return m_areCloseRelative(lhs, rhs);
@@ -68,7 +68,7 @@ class Doodler : public IEntity
 
     void setNextY();
 
-    sf::FloatRect getBounds() const;
+    sf::FloatRect getBounds() const override;
 
     float getNextY() const;
 };
diff --git a/Engine.h b/Engine.h
index 3d222a8..5e584bd 100644
--- a/Engine.h
+++ b/Engine.h
@@ -15,12 +15,12 @@ class Engine
     bool m_shouldSetFloor = false;
     float m_floor = WINDOW_HEIGHT;
 
-    const Lambda<bool(const std::shared_ptr<IEntity> &)> m_isDoodler = [&](
+    const std::function<bool(const std::shared_ptr<IEntity> &)> m_isDoodler = [&](
         const std::shared_ptr<IEntity> &p_entity) -> bool {
         return p_entity->getType() == Types::Doodler;
     };
 
-    const Lambda<void(const std::shared_ptr<IEntity> &)> m_applyForEach = [&](
+    const std::function<void(const std::shared_ptr<IEntity> &)> m_applyForEach = [&](
         const std::shared_ptr<IEntity> &p_entity) -> void {
         if (m_p_doodler == nullptr || m_isDoodler(p_entity))
         {
diff --git a/Platform.h b/Platform.h
index 3adf080..ae0afa2 100644
--- a/Platform.h
+++ b/Platform.h
@@ -29,7 +29,7 @@ class Platform : public IEntity
 
     void draw(sf::RenderTarget &target, sf::RenderStates states) const override;
 
-    sf::FloatRect getBounds() const;
+    sf::FloatRect getBounds() const override;
 };
 
 #endif //DOODLE_JUMP_PLATFORM_H
diff --git a/consts.h b/consts.h
index da48389..ed00f9a 100644
--- a/consts.h
+++ b/consts.h
@@ -22,9 +22,6 @@ static const float MOVE_SPEED = 500.f;
 static const size_t PLATFORM_COUNT = 30;
 static const unsigned MAX_PRECISION_COUNT = 128;
 
-template<typename Signature>
-using Lambda = std::function<Signature>;
-
 enum class Types : size_t
 {
     Platform = 0,