diff --git a/CMakeLists.txt b/CMakeLists.txt
index 38fa4806..ab2f7c6f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -176,7 +176,7 @@ set(SOURCES
 	sources/Component/Color/ColorComponent.cpp
 	sources/Component/Stat/StatComponent.cpp
 	sources/Component/Stat/StatComponent.hpp
-	)
+	sources/Component/Shaders/Items/AlphaCtxShaderComponent.cpp sources/Component/Shaders/Items/AlphaCtxShaderComponent.hpp)
 
 add_executable(bomberman
 	sources/main.cpp
diff --git a/sources/Component/Shaders/Items/AlphaCtxShaderComponent.cpp b/sources/Component/Shaders/Items/AlphaCtxShaderComponent.cpp
new file mode 100644
index 00000000..49634922
--- /dev/null
+++ b/sources/Component/Shaders/Items/AlphaCtxShaderComponent.cpp
@@ -0,0 +1,20 @@
+//
+// Created by cbihan on 18/06/2021.
+//
+
+#include "AlphaCtxShaderComponent.hpp"
+
+
+namespace BBM
+{
+
+	AlphaVarShaderComponent::AlphaVarShaderComponent(WAL::Entity &entity) :
+		WAL::Component(entity)
+	{
+	}
+
+	WAL::Component *AlphaVarShaderComponent::clone(WAL::Entity &entity) const
+	{
+		return new AlphaVarShaderComponent(this->_entity);
+	}
+}
\ No newline at end of file
diff --git a/sources/Component/Shaders/Items/AlphaCtxShaderComponent.hpp b/sources/Component/Shaders/Items/AlphaCtxShaderComponent.hpp
new file mode 100644
index 00000000..5408d091
--- /dev/null
+++ b/sources/Component/Shaders/Items/AlphaCtxShaderComponent.hpp
@@ -0,0 +1,51 @@
+//
+// Created by cbihan on 18/06/2021.
+//
+
+#pragma once
+
+#include <Component/Component.hpp>
+#include <chrono>
+
+using namespace std::chrono_literals;
+
+namespace BBM
+{
+	class AlphaVarShaderComponent : public WAL::Component
+	{
+	public:
+		//! @brief Transparency
+		float alpha = 1;
+
+		//! @brief minimum transparency
+		float minAlpha = 0.2;
+		//! @brief maximum transparency
+		float maxAlpha = 1;
+		//! @brief inital step value
+		float initalStepValue = 0.04;
+		//! @brief how fast the alpha will vary
+		float step = 0.04;
+		//! @brief if the alpha should increase or decrease
+		float balance = -1;
+
+		//! @brief The clock to use
+		std::chrono::nanoseconds clock = 0ns;
+
+
+		//! @inherit
+		WAL::Component *clone(WAL::Entity &entity) const override;
+
+		//! @brief ctor
+		explicit AlphaVarShaderComponent(WAL::Entity &entity);
+
+		//! @brief Default copy ctor
+		AlphaVarShaderComponent(const AlphaVarShaderComponent &) = default;
+
+		//! @brief Default dtor
+		~AlphaVarShaderComponent() override = default;
+
+		//! @brief Default assignment operator
+		AlphaVarShaderComponent &operator=(const AlphaVarShaderComponent &) = delete;
+	};
+
+}
\ No newline at end of file
diff --git a/sources/Items/Bonus.cpp b/sources/Items/Bonus.cpp
index 6a579d43..0ebfcb25 100644
--- a/sources/Items/Bonus.cpp
+++ b/sources/Items/Bonus.cpp
@@ -58,6 +58,7 @@ namespace BBM {
 		if (!playerBonus)
 			return;
 		playerBonus->nextNoClipRate = playerBonus->noClipBonusRate;
+
 		playerBonus->isNoClipOn = true;
 		const_cast<WAL::Entity &>(bonus).scheduleDeletion();
 	}
@@ -70,7 +71,7 @@ namespace BBM {
 			{SPEEDUP, 45.0f},
 			{BOMBSTOCK, 30.0f},
 			{EXPLOSIONINC, 15.0f},
-			{NOCLIP, 1.5f},
+			{NOCLIP, 70.5f},
 		};
 		std::uniform_int_distribution<int> distribution(1,1000);
 		float value = (distribution(generator) / 10);
diff --git a/sources/Runner/GameScene.cpp b/sources/Runner/GameScene.cpp
index d4e5a382..6c7f8fd7 100644
--- a/sources/Runner/GameScene.cpp
+++ b/sources/Runner/GameScene.cpp
@@ -16,8 +16,10 @@
 #include "Component/BombHolder/BombHolderComponent.hpp"
 #include "Component/Tag/TagComponent.hpp"
 #include "Component/Renderer/Drawable3DComponent.hpp"
+#include "Component/Shaders/Items/AlphaCtxShaderComponent.hpp"
 #include "Component/Renderer/Drawable2DComponent.hpp"
 #include <Drawables/Image.hpp>
+#include "Component/Shaders/ShaderComponent.hpp"
 #include "Drawables/Texture.hpp"
 #include "Component/Gravity/GravityComponent.hpp"
 #include "Component/BumperTimer/BumperTimerComponent.hpp"
@@ -66,6 +68,44 @@ namespace BBM
 			.addComponent<AnimationsComponent>("assets/player/player.iqm", 3)
 			.addComponent<CollisionComponent>(BBM::Vector3f{0.25, 0, 0.25}, BBM::Vector3f{.75, 2, .75})
 			.addComponent<MovableComponent>()
+			.addComponent<AlphaVarShaderComponent>()
+			.addComponent<ShaderComponentModel>("assets/shaders/alpha.fs", "", [](WAL::Entity &myEntity, WAL::Wal &wal, std::chrono::nanoseconds dtime) {
+				auto &ctx = myEntity.getComponent<AlphaVarShaderComponent>();
+
+				ctx.clock += dtime;
+				if (duration_cast<std::chrono::milliseconds>(ctx.clock).count() <= 10)
+					return;
+				ctx.clock = 0ns;
+				auto &bonus = myEntity.getComponent<PlayerBonusComponent>();
+				auto &shader = myEntity.getComponent<ShaderComponentModel>();
+
+				if (!bonus.isNoClipOn) {
+					ctx.alpha = ctx.maxAlpha;
+					shader.shader.setShaderUniformVar("alpha", ctx.alpha);
+					return;
+				}
+
+				auto nbMilliSec = duration_cast<std::chrono::milliseconds>(bonus.nextNoClipRate).count();
+
+				if (nbMilliSec > 1000) {
+					ctx.step = ctx.initalStepValue;
+				} else if (nbMilliSec > 500) {
+					ctx.step = 0.15;
+				} else if (nbMilliSec > 100) {
+					ctx.step = 0.30;
+				} else {
+					ctx.step = 0.5;
+				}
+				ctx.alpha += static_cast<float>(ctx.step * ctx.balance);
+
+				if (ctx.alpha <= ctx.minAlpha) {
+					ctx.balance = 1;
+				}
+				if (ctx.alpha >= ctx.maxAlpha) {
+					ctx.balance = -1;
+				}
+				shader.shader.setShaderUniformVar("alpha", ctx.alpha);
+			}, true)
 			.addComponent<SoundComponent>(soundPath)
 			.addComponent<MusicComponent>("assets/musics/music_battle.ogg")
 			.addComponent<BombHolderComponent>()