diff --git a/server/gameserver/android.cc b/server/gameserver/android.cc
index 94c16be..8a2c71e 100644
--- a/server/gameserver/android.cc
+++ b/server/gameserver/android.cc
@@ -12,14 +12,18 @@ Android::Android():Human()
     entity_subtype = EST_Android;
     ai = new AndroidAI;
     ai->owner = this;
+    #if 0
     ++App::Instance()->perf.entity_num[ET_Android];
+    #endif
 }
 
 Android::~Android()
 {
     delete ai;
     ai = nullptr;
+    #if 0
     --App::Instance()->perf.entity_num[ET_Android];
+    #endif
 }
 
 void Android::Initialize()
diff --git a/server/gameserver/constant.h b/server/gameserver/constant.h
index 19c5259..4ae46ca 100755
--- a/server/gameserver/constant.h
+++ b/server/gameserver/constant.h
@@ -214,12 +214,13 @@ enum EntityType_e
    //ET_DeadBody = 6,
    //ET_Decal = 7,
    //ET_Projectile = 8,
-   ET_Smoke = 9,
-   ET_Hero = 10,
+   //ET_Smoke = 9,
+   //ET_Hero = 10,
 
    ET_Bullet = 20,
 
-   ET_Android = 30,
+   //ET_Android = 30,
+   ET_Unuse = 30,
    ET_MAX
 };
 
diff --git a/server/gameserver/hero.cc b/server/gameserver/hero.cc
deleted file mode 100644
index e2e1dd8..0000000
--- a/server/gameserver/hero.cc
+++ /dev/null
@@ -1,58 +0,0 @@
-#include "precompile.h"
-
-#include "hero.h"
-#include "collider.h"
-#include "human.h"
-#include "typeconvert.h"
-
-Hero::Hero(): Entity()
-{
-    entity_type = ET_Hero;
-}
-
-Hero::~Hero()
-{
-
-}
-
-void Hero::Initialize()
-{
-    Entity::Initialize();
-    RecalcSelfCollider();
-}
-
-void Hero::RecalcSelfCollider()
-{
-    if (!self_collider_) {
-        self_collider_ = new CircleCollider();
-        self_collider_->owner = this;
-        AddCollider(self_collider_);
-    }
-    self_collider_->pos = a8::Vec2();
-    self_collider_->rad = master->GetRadius();
-}
-
-void Hero::FillMFObjectPart(cs::MFObjectPart* part_data)
-{
-    part_data->set_object_type(entity_type);
-    cs::MFHeroPart* p = part_data->mutable_union_obj_10();
-    p->set_obj_uniid(entity_uniid);
-    TypeConvert::ToPb(GetPos(), p->mutable_pos());
-    TypeConvert::ToPb(attack_dir, p->mutable_dir());
-}
-
-void Hero::FillMFObjectFull(cs::MFObjectFull* full_data)
-{
-    full_data->set_object_type(entity_type);
-    cs::MFHeroFull* p = full_data->mutable_union_obj_10();
-    p->set_obj_uniid(entity_uniid);
-    TypeConvert::ToPb(GetPos(), p->mutable_pos());
-    TypeConvert::ToPb(attack_dir, p->mutable_dir());
-
-    skin.ToPB(p->mutable_skin());
-    p->set_backpack(backpack);
-    p->set_helmet(helmet);
-    p->set_chest(chest);
-    weapon.ToPB(p->mutable_weapon());
-    p->set_energy_shield(energy_shield);
-}
diff --git a/server/gameserver/hero.h b/server/gameserver/hero.h
deleted file mode 100644
index 406fcec..0000000
--- a/server/gameserver/hero.h
+++ /dev/null
@@ -1,35 +0,0 @@
-#pragma once
-
-#include "entity.h"
-
-class Building;
-class CircleCollider;
-class AabbCollider;
-class Human;
-class Hero : public Entity
-{
- public:
-
-    a8::Vec2 move_dir;
-    a8::Vec2 attack_dir;
-
-    Human* master = nullptr;
-
-    Skin skin;
-    int backpack = 0;
-    int helmet = 0;
-    int chest = 0;
-    Weapon weapon;
-    int energy_shield = 0;
-
-    Hero();
-    virtual ~Hero() override;
-    virtual void Initialize() override;
-    void RecalcSelfCollider();
-    virtual void FillMFObjectPart(cs::MFObjectPart* part_data) override;
-    virtual void FillMFObjectFull(cs::MFObjectFull* full_data) override;
-
-private:
-    CircleCollider* self_collider_ = nullptr;
-
-};
diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 7df89c6..0982a34 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -13,7 +13,6 @@
 #include "collider.h"
 #include "loot.h"
 #include "building.h"
-#include "hero.h"
 #include "app.h"
 #include "roommgr.h"
 #include "android.h"
@@ -1188,7 +1187,6 @@ void Human::RefreshView()
             switch (entity->entity_type) {
             case ET_Building:
             case ET_Obstacle:
-            case ET_Hero:
             case ET_Loot:
                 {
                     AddToNewObjects(entity);
@@ -1224,7 +1222,6 @@ void Human::OnGridListChange(std::set<GridCell*>& old_grid_list,
                 switch (entity->entity_type) {
                 case ET_Building:
                 case ET_Obstacle:
-                case ET_Hero:
                 case ET_Loot:
                     {
                         AddToNewObjects(entity);
@@ -1251,7 +1248,6 @@ void Human::OnGridListChange(std::set<GridCell*>& old_grid_list,
                 switch (entity->entity_type) {
                 case ET_Building:
                 case ET_Obstacle:
-                case ET_Hero:
                 case ET_Loot:
                     {
                         AddOutObjects(entity);
@@ -1498,13 +1494,6 @@ void Human::FillBodyState(::google::protobuf::RepeatedPtrField<::cs::MFBodyState
         state->set_left_time(std::max(0, skill_meta->last_time * 1000 - passed_time));
         state->set_lasting_time(skill_meta->last_time * 1000);
     }
-    if (a8::HasBitFlag(status, HS_SummonHero) && skill_meta) {
-        int passed_time = (room->frame_no - summon_hero_frameno_) * FRAME_RATE_MS;
-        cs::MFBodyState* state = states->Add();
-        state->set_state_type(HS_SummonHero);
-        state->set_left_time(std::max(0, skill_meta->last_time * 1000 - passed_time));
-        state->set_lasting_time(skill_meta->last_time * 1000);
-    }
     #endif
     if (a8::HasBitFlag(status, HS_AtkAdd)) {
         cs::MFBodyState* state = states->Add();
@@ -1531,39 +1520,6 @@ void Human::FillItemList(::google::protobuf::RepeatedPtrField<::cs::MFPair>* pb_
     }
 }
 
-void Human::SummonHero()
-{
-    #if 0
-    Hero* hero = room->CreateHero(this);
-    if (hero) {
-        summon_hero_frameno_ = room->frame_no;
-        a8::SetBitFlag(status, HS_SummonHero);
-        room->xtimer.AddDeadLineTimerAndAttach(skill_meta->last_time * SERVER_FRAME_RATE,
-                                               a8::XParams()
-                                               .SetSender(this)
-                                               .SetParam1(hero->entity_uniid),
-                                               [] (const a8::XParams& param)
-                                               {
-                                               },
-                                               &skill_xtimer_attacher_.timer_list_,
-                                               [] (const a8::XParams& param)
-                                               {
-                                                   Human* hum = (Human*)param.sender.GetUserData();
-                                                   Entity* hero = hum->room->GetEntityByUniId(param.param1);
-                                                   if (hero && hero->entity_type == ET_Hero) {
-                                                       hum->room->RemoveObjectLater(hero);
-                                                   }
-                                                   a8::UnSetBitFlag(hum->status, HS_SummonHero);
-                                                   hum->need_sync_active_player = true;
-                                                   hum->BroadcastFullState();
-                                               }
-                                               );
-        need_sync_active_player = true;
-        BroadcastFullState();
-    }
-    #endif
-}
-
 void Human::AddObserver(Human* observer)
 {
     observers_.insert(observer);
@@ -1615,7 +1571,6 @@ void Human::SendUpdateMsg()
                             switch (entity->entity_type) {
                             case ET_Building:
                             case ET_Obstacle:
-                            case ET_Hero:
                             case ET_Loot:
                                 {
                                     view_objects.insert(entity);
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 6c7fa33..f5b822c 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -20,7 +20,6 @@
 #include "loot.h"
 #include "roommgr.h"
 #include "app.h"
-#include "hero.h"
 #include "gamelog.h"
 #include "typeconvert.h"
 
@@ -500,39 +499,6 @@ Obstacle* Room::CreateObstacle(int id, float x, float y)
     return entity;
 }
 
-Hero* Room::CreateHero(Human* hum)
-{
-    a8::Vec2 pos = hum->GetPos();
-    {
-        a8::Vec2 dir = a8::Vec2::UP;
-        dir.Rotate(a8::RandAngle());
-        pos = pos + dir * (25 + rand() % 50);
-    }
-
-    Hero* hero = new Hero();
-    hero->room = this;
-    hero->entity_uniid = AllocUniid();
-    hero->SetPos(pos);
-    hero->move_dir = hum->move_dir;
-    hero->attack_dir = hum->attack_dir;
-    hero->master = hum;
-    #if 0
-    hero->skin = hum->GetSkin();
-    #endif
-    hero->backpack = hum->backpack;
-    hero->helmet = hum->helmet;
-    hero->chest = hum->chest;
-    hero->weapon = *hum->curr_weapon;
-    hero->energy_shield = hum->energy_shield;
-    hero->Initialize();
-    #if 1
-    uniid_hash_[hero->entity_uniid] = hero;
-    grid_service.AddEntity(hero);
-    #endif
-    hero->BroadcastFullState();
-    return hero;
-}
-
 int Room::CreateLoot(int equip_id, a8::Vec2 pos, int count, int equip_lv)
 {
     MetaData::Equip* equip_meta = MetaMgr::Instance()->GetEquip(equip_id);
@@ -611,7 +577,6 @@ void Room::RemoveObjectLater(Entity* entity)
                                }
                                break;
                            case ET_Loot:
-                           case ET_Hero:
                                {
                                    entity->BroadcastDeleteState();
                                    entity->room->grid_service.DelEntity(entity);
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index b8d9106..a3f4161 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -81,7 +81,6 @@ public:
     void ScatterDrop(a8::Vec2 center, int drop_id);
     void DropItem(a8::Vec2 pos, int item_id, int item_count, int item_lv);
 
-    Hero* CreateHero(Human* hum);
     int CreateLoot(int equip_id, a8::Vec2 pos, int count, int equip_lv);
     void CreateBullet(Human* hum, Weapon* weapon,
                       a8::Vec2 pos, a8::Vec2 dir, float fly_distance, bool is_tank_skin = false);
diff --git a/server/gameserver/smoke.cc b/server/gameserver/smoke.cc
deleted file mode 100644
index 9c817a4..0000000
--- a/server/gameserver/smoke.cc
+++ /dev/null
@@ -1,26 +0,0 @@
-#include "precompile.h"
-
-#include "smoke.h"
-#include "metamgr.h"
-#include "room.h"
-#include "collider.h"
-#include "obstacle.h"
-#include "player.h"
-
-Smoke::Smoke():Entity()
-{
-    entity_type = ET_Smoke;
-}
-
-Smoke::~Smoke()
-{
-}
-
-void Smoke::Initialize()
-{
-    Entity::Initialize();
-}
-
-void Smoke::Update(int delta_time)
-{
-}
diff --git a/server/gameserver/smoke.h b/server/gameserver/smoke.h
deleted file mode 100644
index 4c61a4b..0000000
--- a/server/gameserver/smoke.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#pragma once
-
-#include "entity.h"
-
-namespace MetaData
-{
-    struct Player;
-    struct Equip;
-}
-
-class Human;
-class Smoke : public Entity
-{
- public:
-    MetaData::Equip* gun_meta = nullptr;
-    MetaData::Equip* meta = nullptr;
-    Human* player = nullptr;
-    a8::Vec2 dir;
-    a8::Vec2 born_pos;
-    a8::Vec2 born_dir;
-
-    Smoke();
-    virtual ~Smoke() override;
-    virtual void Initialize() override;
-    virtual void Update(int delta_time) override;
-
-};