diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8ae95107..6fc419f4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,8 +92,14 @@ set(SOURCES
 	sources/System/Sound/PlayerSoundManagerSystem.hpp
 	sources/System/Music/MusicSystem.hpp
 	sources/System/Music/MusicSystem.cpp
+	sources/Component/Gravity/GravityComponent.hpp
 	sources/Component/Gravity/GravityComponent.cpp
+	sources/System/Gravity/GravitySystem.hpp
 	sources/System/Gravity/GravitySystem.cpp
+	sources/Component/BumperTimer/BumperTimerComponent.hpp
+	sources/Component/BumperTimer/BumperTimerComponent.cpp
+	sources/System/BumperTimer/BumperTimerSystem.hpp
+	sources/System/BumperTimer/BumperTimerSystem.cpp
 )
 
 add_executable(bomberman
diff --git a/sources/Component/BumperTimer/BumperTimerComponent.cpp b/sources/Component/BumperTimer/BumperTimerComponent.cpp
new file mode 100644
index 00000000..1d661395
--- /dev/null
+++ b/sources/Component/BumperTimer/BumperTimerComponent.cpp
@@ -0,0 +1,17 @@
+//
+// Created by Tom Augier on 2021-05-20.
+//
+
+#include "BumperTimerComponent.hpp"
+
+namespace BBM
+{
+	BumperTimerComponent::BumperTimerComponent(WAL::Entity &entity)
+		: WAL::Component(entity)
+	{}
+
+	WAL::Component *BumperTimerComponent::clone(WAL::Entity &entity) const
+	{
+		return new BumperTimerComponent(entity);
+	}
+}
\ No newline at end of file
diff --git a/sources/Component/BumperTimer/BumperTimerComponent.hpp b/sources/Component/BumperTimer/BumperTimerComponent.hpp
new file mode 100644
index 00000000..dbeba275
--- /dev/null
+++ b/sources/Component/BumperTimer/BumperTimerComponent.hpp
@@ -0,0 +1,41 @@
+//
+// Created by Tom Augier on 2021-05-20.
+//
+
+#pragma once
+
+#include <chrono>
+#include "Component/Component.hpp"
+#include "Entity/Entity.hpp"
+
+using namespace std::chrono_literals;
+
+namespace BBM
+{
+	class BumperTimerComponent : public WAL::Component
+	{
+		public:
+
+
+			bool _isReseting = false;
+			//! @brief The number of seconds of each refill. This variable is used to reset the nextBombRefill value.
+			std::chrono::nanoseconds resetRate = 1500ms;
+			//! @brief The number of nanosecond before the next bomb refill.
+			std::chrono::nanoseconds nextReset = resetRate;
+
+			//! @inherit
+			WAL::Component *clone(WAL::Entity &entity) const override;
+
+			//! @brief Constructor
+			BumperTimerComponent(WAL::Entity &entity);
+
+			//! @brief A BumperTimer component can't be instantiated, it should be derived.
+			BumperTimerComponent(const BumperTimerComponent &) = default;
+
+			//! @brief default destructor
+			~BumperTimerComponent() override = default;
+
+			//! @brief A BumperTimer component can't be assigned
+			BumperTimerComponent &operator=(const BumperTimerComponent &) = delete;
+	};
+}
\ No newline at end of file
diff --git a/sources/Component/Gravity/GravityComponent.hpp b/sources/Component/Gravity/GravityComponent.hpp
index f2b6a368..59f7cc89 100644
--- a/sources/Component/Gravity/GravityComponent.hpp
+++ b/sources/Component/Gravity/GravityComponent.hpp
@@ -4,7 +4,6 @@
 
 #pragma once
 
-#include <Models/Callback.hpp>
 #include "Component/Component.hpp"
 #include "Entity/Entity.hpp"
 
diff --git a/sources/Map/Map.cpp b/sources/Map/Map.cpp
index fb26dd2f..9d76bf45 100644
--- a/sources/Map/Map.cpp
+++ b/sources/Map/Map.cpp
@@ -7,6 +7,7 @@
 #include "System/Collision/CollisionSystem.hpp"
 #include "Map.hpp"
 #include <Component/Tag/TagComponent.hpp>
+#include <Component/BumperTimer/BumperTimerComponent.hpp>
 
 namespace RAY3D = RAY::Drawables::Drawables3D;
 
@@ -17,10 +18,14 @@ namespace BBM
 	                                 CollisionComponent::CollidedAxis collidedAxis)
 	{
 		auto *movable = entity.tryGetComponent<MovableComponent>();
+		auto *bumperTimer = entity.tryGetComponent<BumperTimerComponent>();
 
-		if (!movable)
+		if (!movable || !bumperTimer)
 			return;
-		movable->_velocity.y = 0.5;
+		if (!bumperTimer->_isReseting) {
+			movable->_velocity.y = 1.5;
+			bumperTimer->_isReseting = true;
+		}
 	}
 
 	void MapGenerator::holeCollide(WAL::Entity &entity,
@@ -197,7 +202,10 @@ namespace BBM
 
 		scene->addEntity("Upper Floor")
 			.addComponent<PositionComponent>(Vector3f(coords))
-			.addComponent<Drawable3DComponent, RAY3D::Model>(floorObj, std::make_pair(MAP_DIFFUSE, floorPng));
+			.addComponent<Drawable3DComponent, RAY3D::Model>(floorObj, std::make_pair(MAP_DIFFUSE, floorPng))
+			.addComponent<CollisionComponent>(
+				WAL::Callback<WAL::Entity &, const WAL::Entity &, CollisionComponent::CollidedAxis>(),
+				&MapGenerator::wallCollide, 0.25, 0.75);
 	}
 
 
@@ -308,9 +316,25 @@ namespace BBM
 	MapGenerator::MapBlock MapGenerator::createSpawner(MapBlock map, int width, int height)
 	{
 		map[std::make_tuple(0, 0, 0)] = SPAWNER;
+		map[std::make_tuple(0, 0, 1)] = SPAWNER;
+		map[std::make_tuple(0, 0, 2)] = SPAWNER;
+		map[std::make_tuple(1, 0, 0)] = SPAWNER;
+		map[std::make_tuple(2, 0, 0)] = SPAWNER;
 		map[std::make_tuple(width, 0, 0)] = SPAWNER;
+		map[std::make_tuple(width - 1, 0, 0)] = SPAWNER;
+		map[std::make_tuple(width - 2, 0, 0)] = SPAWNER;
+		map[std::make_tuple(width, 0, 1)] = SPAWNER;
+		map[std::make_tuple(width, 0, 2)] = SPAWNER;
 		map[std::make_tuple(0, 0, height)] = SPAWNER;
+		map[std::make_tuple(1, 0, height)] = SPAWNER;
+		map[std::make_tuple(2, 0, height)] = SPAWNER;
+		map[std::make_tuple(0, 0, height - 1)] = SPAWNER;
+		map[std::make_tuple(0, 0, height - 2)] = SPAWNER;
 		map[std::make_tuple(width, 0, height)] = SPAWNER;
+		map[std::make_tuple(width, 0, height - 1)] = SPAWNER;
+		map[std::make_tuple(width, 0, height - 2)] = SPAWNER;
+		map[std::make_tuple(width - 1, 0, height)] = SPAWNER;
+		map[std::make_tuple(width - 2, 0, height)] = SPAWNER;
 
 		return map;
 	}
@@ -321,6 +345,8 @@ namespace BBM
 			for (int j = 0; j < height; j++) {
 				if (map[std::make_tuple(i, 0, j)] == BREAKABLE && map[std::make_tuple(i, -1, j)] == BUMPER)
 					map[std::make_tuple(i, 0, j)] = NOTHING;
+				if (map[std::make_tuple(i, 1, j)] == BREAKABLE && isCloseToBlockType(map, i, -1, j, BUMPER))
+					map[std::make_tuple(i, 1, j)] = NOTHING;
 			}
 		return (map);
 	}
diff --git a/sources/Runner/Runner.cpp b/sources/Runner/Runner.cpp
index de4c821f..5cdcbd3a 100644
--- a/sources/Runner/Runner.cpp
+++ b/sources/Runner/Runner.cpp
@@ -41,6 +41,8 @@
 #include "System/Music/MusicSystem.hpp"
 #include "Component/Gravity/GravityComponent.hpp"
 #include "System/Gravity/GravitySystem.hpp"
+#include "Component/BumperTimer/BumperTimerComponent.hpp"
+#include "System/BumperTimer/BumperTimerSystem.hpp"
 
 namespace RAY3D = RAY::Drawables::Drawables3D;
 namespace RAY2D = RAY::Drawables::Drawables2D;
@@ -69,6 +71,7 @@ namespace BBM
 			.addSystem<CollisionSystem>()
 			.addSystem<MovableSystem>()
 			.addSystem<GravitySystem>()
+			.addSystem<BumperTimerSystem>()
 			.addSystem<PlayerSoundManagerSystem>()
 			.addSystem<MusicSystem>();
 	}
@@ -92,7 +95,7 @@ namespace BBM
 		    //{SoundComponent::DEATH, "assets/sounds/death.ogg"}
 		};
 		scene->addEntity("player")
-			.addComponent<PositionComponent>()
+			.addComponent<PositionComponent>(0, 1.01, 0)
 			.addComponent<Drawable3DComponent, RAY3D::Model>("assets/player/player.iqm", std::make_pair(MAP_DIFFUSE, "assets/player/blue.png"))
 			.addComponent<ControllableComponent>()
 			.addComponent<AnimatorComponent>()
@@ -106,6 +109,7 @@ namespace BBM
 			.addComponent<SoundComponent>(soundPath)
 			.addComponent<GravityComponent>()
 			.addComponent<BombHolderComponent>()
+			.addComponent<BumperTimerComponent>()
 			.addComponent<HealthComponent>(1, [](WAL::Entity &entity) {
 				auto &animation = entity.getComponent<AnimationsComponent>();
 				animation.setAnimIndex(5);
diff --git a/sources/System/BumperTimer/BumperTimerSystem.cpp b/sources/System/BumperTimer/BumperTimerSystem.cpp
new file mode 100644
index 00000000..36c8b93f
--- /dev/null
+++ b/sources/System/BumperTimer/BumperTimerSystem.cpp
@@ -0,0 +1,25 @@
+//
+// Created by Tom Augier on 2021-06-09.
+//
+
+#include "BumperTimerSystem.hpp"
+
+namespace BBM
+{
+	BumperTimerSystem::BumperTimerSystem(WAL::Wal &wal)
+		: System(wal)
+	{}
+
+	void BumperTimerSystem::onUpdate(WAL::ViewEntity<BumperTimerComponent> &entity, std::chrono::nanoseconds dtime)
+	{
+		auto &bumperTimer = entity.get<BumperTimerComponent>();
+
+		if (bumperTimer._isReseting) {
+			bumperTimer.nextReset -= dtime;
+			if (bumperTimer.nextReset <= 0ns) {
+				bumperTimer.nextReset = bumperTimer.resetRate;
+				bumperTimer._isReseting = false;
+			}
+		}
+	}
+}
\ No newline at end of file
diff --git a/sources/System/BumperTimer/BumperTimerSystem.hpp b/sources/System/BumperTimer/BumperTimerSystem.hpp
new file mode 100644
index 00000000..d1bbe2e8
--- /dev/null
+++ b/sources/System/BumperTimer/BumperTimerSystem.hpp
@@ -0,0 +1,29 @@
+//
+// Created by Tom Augier on 2021-06-09.
+//
+
+#pragma once
+
+#include "Component/Movable/MovableComponent.hpp"
+#include "Component/Position/PositionComponent.hpp"
+#include "Component/BumperTimer/BumperTimerComponent.hpp"
+#include "System/System.hpp"
+
+namespace BBM
+{
+	//! @brief A system to handle BumperTimer entities.
+	class BumperTimerSystem : public WAL::System<BumperTimerComponent>
+	{
+	public:
+		//! @inherit
+		void onUpdate(WAL::ViewEntity<BumperTimerComponent> &entity, std::chrono::nanoseconds dtime) override;
+		//! @brief A default constructor
+		explicit BumperTimerSystem(WAL::Wal &wal);
+		//! @brief A BumperTimer system is copy constructable
+		BumperTimerSystem(const BumperTimerSystem &) = default;
+		//! @brief A default destructor
+		~BumperTimerSystem() override = default;
+		//! @brief A system is not assignable.
+		BumperTimerSystem &operator=(const BumperTimerSystem &) = delete;
+	};
+}
\ No newline at end of file
diff --git a/sources/System/Gravity/GravitySystem.cpp b/sources/System/Gravity/GravitySystem.cpp
index 8e0801e1..6459ed79 100644
--- a/sources/System/Gravity/GravitySystem.cpp
+++ b/sources/System/Gravity/GravitySystem.cpp
@@ -16,6 +16,6 @@ namespace BBM
 		auto &position = entity.get<PositionComponent>();
 
 		if (position.getY() > 0)
-			movable.addForce(Vector3f(0, -0.5, 0));
+			movable.addForce(Vector3f(0, -0.1, 0));
 	}
 }
\ No newline at end of file