diff --git a/assets/tilesheet.png b/assets/tilesheet.png
index 3dba339..e57a39e 100644
Binary files a/assets/tilesheet.png and b/assets/tilesheet.png differ
diff --git a/include/game/component.hpp b/include/game/component.hpp
index c5a3823..ae30970 100644
--- a/include/game/component.hpp
+++ b/include/game/component.hpp
@@ -5,11 +5,11 @@
 
 class MoveCmpt: public Component {
 public:
-    void Init(const Point& p) { position = p; }
+    void Init(const Point& p) { position = p; oldPosition = position; }
     void Release() {}
 
     Point position;
-    Point oldPosition = {0, 0};
+    Point oldPosition;
 };
 
 class MotionCmpt: public Component {
@@ -17,11 +17,12 @@ public:
     void Init(const Point& spd, float maxSpd) {
         speed = spd;
         maxSpeed = maxSpd;
+        acceleration = {0, 0};
     }
     void Release() {}
 
     Point speed;
-    Point acceleration = {0, 0};
+    Point acceleration;
 
     float maxSpeed;
 };
@@ -34,6 +35,22 @@ public:
     Rect rect;
 };
 
+class FightShipCmpt: public Component {
+public:
+    void Init(float degree) {
+        this->degree = degree;
+    }
+    void Release() {}
+
+    float degree;
+};
+
+class FreightShipCmpt: public Component {
+public:
+    void Init() {}
+    void Release() {}
+};
+
 class SpaceshipWeaponCmpt: public Component {
 public:
     enum Type {
@@ -116,6 +133,7 @@ public:
     inline void Init(int damage, Entity* owner) {
         this->owner = owner;
         this->damage = damage;
+        alive = true;
     }
     inline void Release() override {}
 
diff --git a/include/game/constants.hpp b/include/game/constants.hpp
index 8f0c186..d66736c 100644
--- a/include/game/constants.hpp
+++ b/include/game/constants.hpp
@@ -1,8 +1,10 @@
 #pragma once
 
-constexpr float FreightMaxSpeed = 100;
+constexpr float FreightShipMaxSpeed = 100;
+constexpr float FightShipMaxSpeed = 300;
+constexpr int FreightLife = 10;
 constexpr float LazerDamage = 2;
-constexpr float LazerShooterSpeed = 1000;
+constexpr float LazerShooterSpeed = 500;
 constexpr float LazerShooterMaxSpeed = 1000;
 constexpr float LazerShooterCooldown = 0.3;
 constexpr int GameWindowWidth = 1024;
diff --git a/include/game/controllers/spaceship_controller.hpp b/include/game/controllers/fightship_controller.hpp
similarity index 72%
rename from include/game/controllers/spaceship_controller.hpp
rename to include/game/controllers/fightship_controller.hpp
index ccd366b..c860a47 100644
--- a/include/game/controllers/spaceship_controller.hpp
+++ b/include/game/controllers/fightship_controller.hpp
@@ -6,9 +6,9 @@
 #include "game/component.hpp"
 #include "game/action.hpp"
 
-class FreeRotationController: public Controller {
+class FightShipController: public Controller {
 public:
-    FreeRotationController(Entity* entity);
+    FightShipController(Entity* entity);
     void Update(float dt) override;
 
 private:
diff --git a/include/game/controllers/freightship_controller.hpp b/include/game/controllers/freightship_controller.hpp
new file mode 100644
index 0000000..dd75ca6
--- /dev/null
+++ b/include/game/controllers/freightship_controller.hpp
@@ -0,0 +1,16 @@
+#pragma once
+
+#include "game/controller.hpp"
+#include "tinyengine/tinyengine.hpp"
+#include "game/entity.hpp"
+#include "game/component.hpp"
+#include "game/action.hpp"
+
+class FreightShipController: public Controller {
+public:
+    FreightShipController(Entity* entity);
+    void Update(float dt) override;
+
+private:
+    Entity* entity_;
+};
diff --git a/include/game/entity.hpp b/include/game/entity.hpp
index 36d17ab..853fc00 100644
--- a/include/game/entity.hpp
+++ b/include/game/entity.hpp
@@ -5,4 +5,5 @@
 #include "game/global.hpp"
 
 Entity* CreateFreightShip();
+Entity* CreateFightShip();
 Entity* CreateBullet(int damage, Entity* owner, float maxSpeedß);
diff --git a/include/game/global.hpp b/include/game/global.hpp
index 7f07ce7..bb226e5 100644
--- a/include/game/global.hpp
+++ b/include/game/global.hpp
@@ -5,14 +5,11 @@
 
 extern Context ECSContext;
 extern SystemManager SystemMgr;
-extern std::unordered_map<std::string, Unique<TileSheet>> TileSheets;
+extern Unique<TileSheet> GameTileSheet;
 extern std::unordered_map<std::string, Unique<Sound>> Sounds;
-extern std::string TileSheetName;
 
 extern QuickList<Entity*> Bullets;
 
-using EntityList = std::vector<Entity*>;
-
-extern EntityList Entities;
+extern QuickList<Entity*> Entities;
 
 void LoadResources();
diff --git a/include/game/quick_list.hpp b/include/game/quick_list.hpp
index c55e304..9345626 100644
--- a/include/game/quick_list.hpp
+++ b/include/game/quick_list.hpp
@@ -9,11 +9,15 @@ public:
         datas_.push_back(elem);
     }
 
-    void RemoveAll(std::function<bool(const T&)> func) {
-        int idx = 0;
+    void RemoveAll(std::function<bool(const T&)> findFunc,
+                      std::function<void(const T&)> destroyFunc = nullptr) {
+        std::size_t idx = 0;
         while (idx < datas_.size()) {
-            if (func(datas_[idx]) && datas_.size() > idx) {
+            if (datas_.size() > idx && findFunc(datas_[idx])) {
                 std::swap(datas_[idx], datas_[datas_.size() - 1]);
+                if (destroyFunc) {
+                    destroyFunc(datas_.back());
+                }
                 datas_.pop_back();
             } else {
                 idx ++;
diff --git a/include/game/stages/space.hpp b/include/game/stages/space.hpp
index 3faefc6..d837121 100644
--- a/include/game/stages/space.hpp
+++ b/include/game/stages/space.hpp
@@ -4,7 +4,8 @@
 #include "game/global.hpp"
 #include "game/entity.hpp"
 #include "game/system.hpp"
-#include "game/controllers/spaceship_controller.hpp"
+#include "game/controllers/freightship_controller.hpp"
+#include "game/controllers/fightship_controller.hpp"
 
 class SpaceScence: public Scence {
 public:
@@ -15,5 +16,11 @@ public:
 
 private:
     Entity* spaceship_;
-    Unique<FreeRotationController> controller_;
+    Unique<FreightShipController> freightController_;
+    Unique<FightShipController> fightController_;
+
+    void renderGUI();
+
+    Camera guiCamera_;
+    Camera gameCamera_;
 };
diff --git a/include/game/system.hpp b/include/game/system.hpp
index a250713..195a9ae 100644
--- a/include/game/system.hpp
+++ b/include/game/system.hpp
@@ -22,6 +22,11 @@ private:
     void correctColliRect(MoveCmpt&, CollisionCmpt&);
 };
 
+class CollideSystem: public UpdateSystem {
+public:
+    void Update(float dt) override;
+};
+
 class CleanupSystem: public UpdateSystem {
 public:
     void Update(float dt) override;
@@ -38,4 +43,5 @@ public:
 
 private:
     void renderEntity(Entity* entity, const RenderCmpt&);
+    void renderCollideBox(Entity* entity);
 };
diff --git a/include/tinyengine/libmath.hpp b/include/tinyengine/libmath.hpp
index d307557..481c3ee 100644
--- a/include/tinyengine/libmath.hpp
+++ b/include/tinyengine/libmath.hpp
@@ -92,7 +92,7 @@ inline float Clamp(float min, float max, float value) {
 inline bool IsRectsIntersect(const Rect& r1, const Rect& r2) {
     return !(r1.x > r2.x + r2.w ||
              r1.x + r1.w < r2.x ||
-             r1.y > r2.x + r2.h ||
+             r1.y > r2.y + r2.h ||
              r1.y + r1.h < r2.y);
 }
 
@@ -149,6 +149,14 @@ inline Point GetCenterAlign(const Rect& parent, const Size& child) {
                  parent.y + (parent.h - child.h) / 2.0f};
 }
 
+inline Point Rotate(const Point& v, float degree) {
+    float radians = Radians(degree);
+    float sinTheta = std::sin(radians),
+          cosTheta = std::cos(radians);
+    return Point{v.x * cosTheta - v.y * sinTheta,
+                 v.x * sinTheta + v.y * cosTheta};
+}
+
 inline Mat44 CreateSRT(const Point& pos, const Point& scale, float degree) {
     float theta = Radians(degree);
     float sinTheta = std::sin(theta),
diff --git a/src/game/action.cpp b/src/game/action.cpp
index 0cc8235..eb00025 100644
--- a/src/game/action.cpp
+++ b/src/game/action.cpp
@@ -5,7 +5,7 @@ void Shoot(SpaceshipWeaponCmpt& weapon, const Point& dir) {
 
     Point playerCenterPos = weapon.owner->Get<MoveCmpt>()->position;
 
-    auto bullet = weapon.ShootBullet(Normalize(dir) * weapon.shootSpeed);
+    auto bullet = weapon.ShootBullet(dir);
     Bullets.Add(bullet);
 
     weapon.coolDown = weapon.shootDuration;
diff --git a/src/game/controllers/fightship_controller.cpp b/src/game/controllers/fightship_controller.cpp
new file mode 100644
index 0000000..d69495e
--- /dev/null
+++ b/src/game/controllers/fightship_controller.cpp
@@ -0,0 +1,33 @@
+#include "game/controllers/fightship_controller.hpp"
+#include "tinyengine/event.hpp"
+
+FightShipController::FightShipController(Entity* entity)
+    : entity_(entity) {}
+
+void FightShipController::Update(float dt) {
+    const float spd = 100;
+    auto motionCmpt = entity_->Use<MotionCmpt>();
+    float& rotation = entity_->Use<FightShipCmpt>()->degree;
+    if (IsKeyPressing(GLFW_KEY_A)) {
+        rotation += 2;
+    }
+    if (IsKeyPressing(GLFW_KEY_D)) {
+        rotation -= 2;
+    }
+    if (IsKeyPressing(GLFW_KEY_S)) {
+        motionCmpt->acceleration = Rotate(Point{0, spd}, -rotation);
+    }
+    if (IsKeyPressing(GLFW_KEY_W)) {
+        motionCmpt->acceleration = Rotate(Point{0, -spd}, -rotation);
+    }
+
+    motionCmpt->speed = Rotate(Point{0, -1} * Len(motionCmpt->speed),
+                               -rotation);
+
+    if (IsLeftPressing()) {
+        if (entity_->Has<SpaceshipWeaponCmpt>()) {
+            Shoot(*entity_->Use<SpaceshipWeaponCmpt>(),
+                  GetMousePosition() - entity_->Get<MoveCmpt>()->position);
+        }
+    }
+}
diff --git a/src/game/controllers/spaceship_controller.cpp b/src/game/controllers/freightship_controller.cpp
similarity index 86%
rename from src/game/controllers/spaceship_controller.cpp
rename to src/game/controllers/freightship_controller.cpp
index 770d99e..86df5eb 100644
--- a/src/game/controllers/spaceship_controller.cpp
+++ b/src/game/controllers/freightship_controller.cpp
@@ -1,10 +1,10 @@
-#include "game/controllers/spaceship_controller.hpp"
+#include "game/controllers/freightship_controller.hpp"
 #include "tinyengine/event.hpp"
 
-FreeRotationController::FreeRotationController(Entity* entity)
+FreightShipController::FreightShipController(Entity* entity)
     : entity_(entity) {}
 
-void FreeRotationController::Update(float dt) {
+void FreightShipController::Update(float dt) {
     const float spd = 100;
     auto motionCmpt = entity_->Use<MotionCmpt>();
     if (IsKeyPressing(GLFW_KEY_A)) {
diff --git a/src/game/entity.cpp b/src/game/entity.cpp
index f9a363b..8c548a7 100644
--- a/src/game/entity.cpp
+++ b/src/game/entity.cpp
@@ -1,16 +1,37 @@
 #include "game/entity.hpp"
+#include "game/constants.hpp"
 
 Entity* CreateFreightShip() {
     Entity* entity = ECSContext.CreateEntity();
     entity->Add<MoveCmpt>(Point{0, 0});
-    entity->Add<MotionCmpt>(Point{0, 0}, FreightMaxSpeed);
-    entity->Add<RenderCmpt>(TileSheets[TileSheetName]->GetTile(0, 0));
+    entity->Add<MotionCmpt>(Point{0, 0}, FreightShipMaxSpeed);
+    entity->Add<RenderCmpt>(GameTileSheet->GetTile(0, 0));
     entity->Add<SpaceshipWeaponCmpt>(SpaceshipWeaponCmpt::Orientation,
                                      entity,
                                      LazerDamage,
                                      LazerShooterSpeed,
                                      LazerShooterMaxSpeed,
                                      LazerShooterCooldown);
+    entity->Add<CollisionCmpt>(Size{16, 16});
+    entity->Add<LifeCmpt>(FreightLife);
+    entity->Add<FreightShipCmpt>();
+    return entity;
+}
+
+Entity* CreateFightShip() {
+    Entity* entity = ECSContext.CreateEntity();
+    entity->Add<MoveCmpt>(Point{0, 0});
+    entity->Add<MotionCmpt>(Point{0, 0}, FightShipMaxSpeed);
+    entity->Add<RenderCmpt>(GameTileSheet->GetTile(1, 0));
+    entity->Add<SpaceshipWeaponCmpt>(SpaceshipWeaponCmpt::Orientation,
+                                     entity,
+                                     LazerDamage,
+                                     LazerShooterSpeed,
+                                     LazerShooterMaxSpeed,
+                                     LazerShooterCooldown);
+    entity->Add<CollisionCmpt>(Size{16, 16});
+    entity->Add<LifeCmpt>(FreightLife);
+    entity->Add<FightShipCmpt>(0);
     return entity;
 }
 
@@ -18,7 +39,8 @@ Entity* CreateBullet(int damage, Entity* owner, float maxSpeed) {
     Entity* entity = ECSContext.CreateEntity();
     entity->Add<MoveCmpt>(Point{0, 0});
     entity->Add<MotionCmpt>(Point{0, 0}, maxSpeed);
-    entity->Add<RenderCmpt>(TileSheets[TileSheetName]->GetTile(0, 1));
+    entity->Add<RenderCmpt>(GameTileSheet->GetTile(0, 1));
     entity->Add<BulletCmpt>(damage, owner);
+    entity->Add<CollisionCmpt>(Size{8, 8});
     return entity;
 }
diff --git a/src/game/global.cpp b/src/game/global.cpp
index 3a76481..9e1819f 100644
--- a/src/game/global.cpp
+++ b/src/game/global.cpp
@@ -2,14 +2,13 @@
 
 Context ECSContext;
 SystemManager SystemMgr;
-std::unordered_map<std::string, Unique<TileSheet>> TileSheets;
+Unique<TileSheet> GameTileSheet;
 std::unordered_map<std::string, Unique<Sound>> Sounds;
-std::string TileSheetName = "TileSheet";
 QuickList<Entity*> Bullets;
-EntityList Entities;
+QuickList<Entity*> Entities;
 
 void loadImages() {
-    TileSheets[TileSheetName] = std::make_unique<TileSheet>("assets/tilesheet.png", 8, 8);
+    GameTileSheet.reset(new TileSheet("assets/tilesheet.png", 8, 8));
 }
 
 void loadSounds() {
diff --git a/src/game/stages/space.cpp b/src/game/stages/space.cpp
index 1e996ba..226db14 100644
--- a/src/game/stages/space.cpp
+++ b/src/game/stages/space.cpp
@@ -4,27 +4,54 @@ void SpaceScence::OnInit() {
     Renderer::SetClearColor(Color{0, 0, 0, 255});
     LoadResources();
 
-    spaceship_ = CreateFreightShip();
-    Entities.push_back(spaceship_);
+    spaceship_ = CreateFightShip();
+    Entities.Add(spaceship_);
     spaceship_->Use<MoveCmpt>()->position = Point{400, 400};
 
-    controller_.reset(new FreeRotationController(spaceship_));
+    Entity* enemy = CreateFreightShip();
+    enemy->Use<MoveCmpt>()->position = Point{100, 100};
+    Entities.Add(enemy);
+
+    enemy = CreateFreightShip();
+    enemy->Use<MoveCmpt>()->position = Point{200, 100};
+    Entities.Add(enemy);
+
+    enemy = CreateFreightShip();
+    enemy->Use<MoveCmpt>()->position = Point{100, 200};
+    Entities.Add(enemy);
+
+    // freightController_.reset(new FreightShipController(spaceship_));
+    fightController_.reset(new FightShipController(spaceship_));
 
     SystemMgr.Clear();
-    SystemMgr.AddRenderSystem(new RenderEntitySystem);
     SystemMgr.AddUpdateSystem(new BulletCooldownSystem);
     SystemMgr.AddUpdateSystem(new PhysicalSystem);
     SystemMgr.AddUpdateSystem(new ColliRectCorrectSystem);
+    SystemMgr.AddUpdateSystem(new CollideSystem);
     SystemMgr.AddUpdateSystem(new CleanupSystem);
+    SystemMgr.AddRenderSystem(new RenderEntitySystem);
 }
 
 void SpaceScence::OnUpdate(float dt) {
-    controller_->Update(dt);
+    fightController_->Update(dt);
     SystemMgr.Update(dt);
 }
 
 void SpaceScence::OnRender() {
+    Renderer::SetCamera(gameCamera_);
     SystemMgr.Render();
+    renderGUI();
+}
+
+void SpaceScence::renderGUI() {
+    Renderer::SetCamera(guiCamera_);
+
+    auto life = spaceship_->Get<LifeCmpt>()->hp;
+    float xOffset = 16 * life;
+    for (int i = 0; i < life; i++) {
+        Renderer::DrawTile(GameTileSheet->GetTile(1, 1),
+                           Point{GameWindowWidth - xOffset + i * 16, 8});
+    }
 }
 
 void SpaceScence::OnQuit() {
diff --git a/src/game/system.cpp b/src/game/system.cpp
index 62f6b0c..674b56d 100644
--- a/src/game/system.cpp
+++ b/src/game/system.cpp
@@ -1,22 +1,22 @@
 #include "game/system.hpp"
 
 void PhysicalSystem::Update(float dt) {
+    // update entities
     for (auto& entity: Entities) {
-        if (entity->Has<MoveCmpt>() && entity->Has<MotionCmpt>()) {
-            // update entities
+        if (entity->Has<MoveCmpt, MotionCmpt>()) {
             physicalStep(entity, dt,
                          *entity->Use<MoveCmpt>(),
                          *entity->Use<MotionCmpt>());
 
-            // update bullets
-            for (auto& bullet : Bullets) {
-                if (bullet->Has<MoveCmpt>() && bullet->Has<MotionCmpt>()) {
-                    physicalStep(bullet, dt,
-                                 *bullet->Use<MoveCmpt>(),
-                                 *bullet->Use<MotionCmpt>());
-                }
-            }
-
+        }
+    }
+    
+    // update bullets
+    for (auto& bullet : Bullets) {
+        if (bullet->Has<MoveCmpt, MotionCmpt>()) {
+            physicalStep(bullet, dt,
+                         *bullet->Use<MoveCmpt>(),
+                         *bullet->Use<MotionCmpt>());
         }
     }
 }
@@ -39,25 +39,57 @@ void PhysicalSystem::physicalStep(Entity* entity,
 
 void ColliRectCorrectSystem::Update(float dt) {
     for (auto& entity: Entities) {
-        if (entity->Has<CollisionCmpt>() &&
-            entity->Has<MoveCmpt>()) {
+        if (entity->Has<CollisionCmpt, MoveCmpt>()) {
             correctColliRect(*entity->Use<MoveCmpt>(),
                              *entity->Use<CollisionCmpt>());
         }
     }
+    for (auto& bullets: Bullets) {
+        if (bullets->Has<CollisionCmpt, MoveCmpt>()) {
+            correctColliRect(*bullets->Use<MoveCmpt>(),
+                             *bullets->Use<CollisionCmpt>());
+        }
+    }
 }
 
 void ColliRectCorrectSystem::correctColliRect(MoveCmpt& move, CollisionCmpt& collision) {
-    collision.rect.x = move.position.x;
-    collision.rect.y = move.position.y;
+    collision.rect.x = move.position.x - collision.rect.w / 2;
+    collision.rect.y = move.position.y - collision.rect.h / 2;
+}
+
+void CollideSystem::Update(float dt) {
+    for (auto& bullet : Bullets) {
+        for (auto& entity: Entities) {
+            if (entity->Has<CollisionCmpt>() &&
+                bullet->Get<BulletCmpt>()->owner != entity &&
+                IsRectsIntersect(bullet->Get<CollisionCmpt>()->rect,
+                                 entity->Get<CollisionCmpt>()->rect)) {
+                if (entity->Has<LifeCmpt>()) {
+                    entity->Use<LifeCmpt>()->hp -= bullet->Get<BulletCmpt>()->damage;
+                }
+                bullet->Use<BulletCmpt>()->alive = false;
+            }
+        }
+    }
 }
 
 void CleanupSystem::Update(float dt) {
     using EntityPtr = Entity*;
     Bullets.RemoveAll([](const EntityPtr& entity){
-        return !IsPointInRect(entity->Get<MoveCmpt>()->position,
+        return !entity->Get<BulletCmpt>()->alive || !IsPointInRect(entity->Get<MoveCmpt>()->position,
                               Rect{0, 0, GameWindowWidth, GameWindowHeight});
     });
+    Entities.RemoveAll([](const EntityPtr& entity){
+        if (entity->Has<LifeCmpt>() &&
+            entity->Get<LifeCmpt>()->hp <= 0) {
+            return true;
+        } else {
+            return false;
+        }
+    },
+    [&](const EntityPtr& entity){
+        ECSContext.DestroyEntity(entity);
+    });
 }
 
 void BulletCooldownSystem::Update(float dt) {
@@ -75,24 +107,41 @@ void RenderEntitySystem::Render() {
     for (auto& entity: Entities) {
         if (entity->Has<RenderCmpt>()) {
             renderEntity(entity, *entity->Get<RenderCmpt>());
+            renderCollideBox(entity);
         }
     }
     
     for (auto& bullet: Bullets) {
         renderEntity(bullet, *bullet->Get<RenderCmpt>());
+        renderCollideBox(bullet);
+    }
+}
+
+void RenderEntitySystem::renderCollideBox(Entity* entity) {
+    if (entity && entity->Has<CollisionCmpt>()) {
+        Renderer::SetDrawColor(Color{0, 255, 0, 255});
+        Renderer::DrawRect(entity->Get<CollisionCmpt>()->rect);
     }
 }
 
 void RenderEntitySystem::renderEntity(Entity* entity, const RenderCmpt& renderCmpt) {
     if (entity->Has<MoveCmpt>()) {
         auto& pos = entity->Get<MoveCmpt>()->position;
+        float degree = 0;
+        if (entity->Has<FightShipCmpt>()) {
+            degree = entity->Get<FightShipCmpt>()->degree;
+        }
         if (renderCmpt.type == RenderCmpt::TypeTexture) {
             Renderer::DrawTexture(renderCmpt.texture,
                                   nullptr,
-                                  pos);
+                                  pos,
+                                  Size{0, 0},
+                                  degree);
         } else {
             Renderer::DrawTile(renderCmpt.tile,
-                               pos);
+                               pos,
+                               Size{0, 0},
+                               degree);
         }
     }
 }