diff --git a/ReadMe.md b/ReadMe.md
index b3b286e..a1a3f0f 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -35,4 +35,8 @@ cmake --build build --target install
 
 # 体积过大
 
-游戏最后的可执行文件和库是经过压缩的（先`strip`再`upx`），最后结果超出1M很正常。
\ No newline at end of file
+游戏最后的可执行文件和库是经过压缩的（先`strip`再`upx`），最后结果超出1M很正常。
+
+# 游戏截图
+
+![snapshot](./snapshot/snapshot.png)
\ No newline at end of file
diff --git a/game/HowToPlay.txt b/game/HowToPlay.txt
new file mode 100644
index 0000000..f6cad75
--- /dev/null
+++ b/game/HowToPlay.txt
@@ -0,0 +1,25 @@
+# InfinitShoot
+
+## 游戏介绍
+
+玩家扮演一个枪手，要尽可能地在怪物的围攻中活下来
+
+## 游戏玩法
+
+左键射击，wasd移动
+
+## 游戏内容
+
+游戏中的敌人会向你移动，想办法击杀或者躲开它们。
+
+游戏中存在三种类型的子弹：
+
+* 普通子弹：玩家初始的子弹，射速最快，伤害中等，但是没有特殊效果
+* 火焰子弹：射速最慢，但是伤害最高，附加怪物火焰效果
+* 冰冻子弹：射速中等，伤害中等，可以冻住怪物，冰冻期间触碰怪物不会受到伤害
+
+特殊效果子弹通过击杀20个敌人后从空投中获得。
+
+空投中除了子弹，还有回血的道具，吃完后立刻回血。
+
+游戏中的敌人尸体在一定时间后会腐烂，踩在腐烂的尸体上将会极大地减少玩家的速度
\ No newline at end of file
diff --git a/game/constants.lua b/game/constants.lua
index e26dc39..569033d 100644
--- a/game/constants.lua
+++ b/game/constants.lua
@@ -13,14 +13,17 @@ _M.SoundName = {
 
 _M.TileSize = 32
 _M.PlayerInfo = {
-    velocity = 250,
-    hp = 100,
+    velocity = 200,
+    hp = 50,
 }
+_M.PlayerSlowSpeed = 50
+
 _M.MonsterInfo = {
     velocity = 100,
     hp = 50,
     damage = 10,
 }
+_M.MonsterDissolveTime = 5
 _M.RoleColliBox = {
     w = 14,
     h = 32,
@@ -51,9 +54,6 @@ _M.MonsetHpBarInfo= {
     width = _M.TileSize,
     height = 5,
 }
-_M.GunInfo = {
-    cooldown = 0.1
-}
 
 _M.BulletType = {
     Normal = 1,
@@ -71,20 +71,20 @@ _M.BulletInfo = {
     [_M.BulletType.Ice] = {
         damage = 5,
         velocity = 400,
-        cooldown = 0.1,
+        cooldown = 0.2,
         initNum = 100,
     },
     [_M.BulletType.Fire] = {
         damage = 7,
         velocity = 600,
-        cooldown = 0.1,
+        cooldown = 0.4,
         fireDamage = 1,
         initNum = 100,
     },
 }
 
 _M.BulletEffectTime = {
-    IceTime = 2,
+    IceTime = 5,
     FireTime = 2,
 }
 _M.RoleState = {
diff --git a/game/ecs.lua b/game/ecs.lua
index b9cf67c..79d30dc 100644
--- a/game/ecs.lua
+++ b/game/ecs.lua
@@ -117,7 +117,8 @@ local ComponentType = {
     Animator = 11,
     State = 12,
     Supply = 13,
-    Image = 14,
+    SlowTrap = 14,
+    Image = 15,
 }
 
 _M.ComponentType = ComponentType
@@ -430,6 +431,9 @@ function _M.CreateGunComponent(type, bulletNum)
     o.SetType = function(self, type)
         self.type = type or constants.BulletType.Normal
         self.bulletNum = constants.BulletInfo[self.type].initNum
+        o.cdTimer = timer.CreateTimer(constants.BulletInfo[type].cooldown, -1, function()
+            o.canShoot = true
+        end)
     end
 
     o.GetBulletNum = function(self)
@@ -521,6 +525,36 @@ function _M.CreateSupplyComponent(type)
 end
 
 
+---@class SlowTrapComponent:Component
+---@field IsEnable function
+---@field StartDissolve function
+
+---@return SupplyComponent
+function _M.CreateSlowTrapComponent()
+    local o = { isActive = true, name = ComponentType.SlowTrap, isEnable = false, parent = nil }
+    ---@type Timer
+    o.timer = nil
+    o.StartDissolve = function(self)
+        self.timer = timer.CreateTimer(constants.MonsterDissolveTime, 1, function()
+            self.isEnable = true
+            ---@type ImageComponent
+            local image = self:GetParent():GetComponent(ComponentType.Image)
+            if image then
+                image.row = 12
+                image.col = 0
+            end
+        end)
+    end
+    o.IsEnable = function(self) return self.isEnable end
+    o.Update = function(self)
+        if self.timer then
+            self.timer:Update()
+        end
+    end
+    return _M.CreateComponent(o)
+end
+
+
 ---@class StateComponent:Component
 ---@field rect Rect
 
@@ -575,6 +609,9 @@ function _M.CreateStateComponent(state)
             local oldHp = roleProp.hp
             roleProp.hp = roleProp.hp - constants.BulletInfo[constants.BulletType.Fire].fireDamage
             if oldHp > 0 and roleProp.hp <= 0 then
+                local slowTrap = _M.CreateSlowTrapComponent()
+                self:GetParent():SetComponent(slowTrap)
+                slowTrap:StartDissolve()
                 content.Score = content.Score + 1
                 helpfuncs.IncKillNum()
             end
@@ -634,7 +671,6 @@ function _M.CreateAnimatorComponent(ani)
     return _M.CreateComponent(o)
 end
 
-
 ---@return Entity
 ---@param pos Point
 ---@param damage number
@@ -665,7 +701,7 @@ function _M.CreatePlayer(pos)
     entity:SetComponent(_M.CreateImageComponent(content.Tilesheet, 0, 0))
     entity:SetComponent(_M.CreateRolePropComponent(constants.PlayerInfo.hp, constants.PlayerInfo.velocity))
     entity:SetComponent(_M.CreateDirectionComponent(0))
-    entity:SetComponent(_M.CreateGunComponent(constants.BulletType.Fire))
+    entity:SetComponent(_M.CreateGunComponent(constants.BulletType.Normal))
     entity:SetComponent(_M.CreateColliBoxComponent(constants.RoleColliBox))
     entity:SetComponent(_M.CreateInvincibleComponent(constants.Invincible))
     entity:SetComponent(_M.CreateStateComponent())
diff --git a/game/main.lua b/game/main.lua
index 5497471..c7fff1c 100644
--- a/game/main.lua
+++ b/game/main.lua
@@ -66,8 +66,13 @@ end
 
 local function updateMonster()
     ---@param v Entity
-    for _, v in pairs(content.MonsterList) do
-        v:Update()
+    for i, v in pairs(content.MonsterList) do
+        if v:GetComponent(ECS.ComponentType.RoleProp):IsDie() then
+            table.insert(content.MonsterCorpseList, v)
+            content.MonsterList[i] = nil
+        else
+            v:Update()
+        end
     end
 end
 
@@ -92,7 +97,7 @@ local function collisionDeal()
     local playerPos = content.PlayerEntity:GetComponent(ECS.ComponentType.Transform).position
     ---@type Rect
     local playerColliBox = hazel.CreateRect(playerPos.x + playerBox.x, playerPos.y + playerBox.y, playerBox.w, playerBox.h)
-    ---@type m Entity
+    ---@type Entity
     for km, _ in pairs(content.MonsterList) do
         ---@type Entity
         local monster = content.MonsterList[km]
@@ -162,11 +167,13 @@ local function collisionDeal()
                     hazel.Sound.Play(constants.SoundName.MonsterHurt)
                     if monsterRoleProp:IsDie() then
                         if oldHp > 0 then
+                            ---@type SlowTrapComponent
+                            local slowTrap = ECS.CreateSlowTrapComponent()
+                            monster:SetComponent(slowTrap)
+                            slowTrap:StartDissolve()
                             content.Score = content.Score + 1
                             helpfunc.IncKillNum()
                         end
-                        table.insert(content.MonsterCorpseList, monster)
-                        content.MonsterList[km] = nil
                     end
                 end
             end
@@ -188,7 +195,7 @@ local function collisionDeal()
                 if type == constants.SupplyType.HpRecover then
                     local index = #content.HpRecoverListAnim + 1
                     local hpRecoverAnim = animation.CreateAnimation(content.Tilesheet, {
-                        {row = 12, col = 0, time = 0.5},
+                        {row = 12, col = 1, time = 0.5},
                     }, function()
                         content.HpRecoverListAnim[index] = nil
                     end)
@@ -213,6 +220,33 @@ local function collisionDeal()
             end
         end
     end
+
+    ---@type boolean
+    local isSlowed = False
+    ---@type RolePropComponent
+    local playerProp = content.PlayerEntity:GetComponent(ECS.ComponentType.RoleProp)
+    playerProp.speed = constants.PlayerSlowSpeed
+    ---@param mk number
+    ---@param corpse Entity
+    for mk, corpse in pairs(content.MonsterCorpseList) do
+        ---@type Point
+        local corpsePos = corpse:GetComponent(ECS.ComponentType.Transform).position
+        ---@type Rect
+        local corpseBox = corpse:GetComponent(ECS.ComponentType.ColliBox).rect
+        ---@type Rect
+        local corpseColliBox = hazel.CreateRect(corpsePos.x + corpseBox.x, corpsePos.y + corpseBox.y,
+                                                corpseBox.w, corpseBox.h)
+        ---@type SlowTrapComponent
+        local slowTrap = corpse:GetComponent(ECS.ComponentType.SlowTrap)
+        if slowTrap:IsEnable() and vmath.IsRectIntersect(corpseColliBox, playerColliBox) then
+            isSlowed = true
+            playerProp.speed = constants.PlayerSlowSpeed
+        end
+    end
+
+    if not isSlowed then
+        playerProp.speed = constants.PlayerInfo.velocity
+    end
 end
 
 local function showRestartHint()
@@ -243,6 +277,7 @@ local function initGame()
     content.HpRecoverListAnim = {}
     content.BulletList = {}
     content.MonsterList = {}
+    content.MonsterCorpseList = {}
     content.SupplyList = {}
     content.PlayerEntity = ECS.CreatePlayer(hazel.CreatePos(constants.TileSize * 16, constants.TileSize * 13))
     content.MonsterBirthNum = constants.MonsterBirthInitNum
@@ -346,7 +381,7 @@ local function updateRoles()
             monster:RemoveComponent(ECS.ComponentType.Direction)
             monster:RemoveComponent(ECS.ComponentType.AI)
             monster:RemoveComponent(ECS.ComponentType.HpShow)
-            monster:RemoveComponent(ECS.ComponentType.ColliBox)
+            -- monster:RemoveComponent(ECS.ComponentType.ColliBox)
             monster:RemoveComponent(ECS.ComponentType.State)
             ---@type ImageComponent
             local image = monster:GetComponent(ECS.ComponentType.Image)
diff --git a/game/resources/tilesheet.png b/game/resources/tilesheet.png
index b18a221..0a7a8ee 100644
Binary files a/game/resources/tilesheet.png and b/game/resources/tilesheet.png differ
diff --git a/snapshot/snapshot.png b/snapshot/snapshot.png
new file mode 100644
index 0000000..57eab67
Binary files /dev/null and b/snapshot/snapshot.png differ