diff --git a/assets/gather.mp3 b/assets/gather.mp3
new file mode 100644
index 0000000..cb342f0
Binary files /dev/null and b/assets/gather.mp3 differ
diff --git a/src/engine/components/RigidBody.d b/src/engine/components/RigidBody.d
index 74d8787..6ca3d46 100644
--- a/src/engine/components/RigidBody.d
+++ b/src/engine/components/RigidBody.d
@@ -34,7 +34,6 @@ class RigidBody: Component {
     layer["Hero"]["Enemy"] = true;
     layer["Enemy"]["Enemy"] = true;
     layer["Enemy"]["Bomb"] = true;
-    layer["Hero"]["Bomb"] = true;
     layer["Bomb"]["Bomb"] = true;
   }
 
diff --git a/src/game/GameManager.d b/src/game/GameManager.d
index d8257ee..f6c633c 100644
--- a/src/game/GameManager.d
+++ b/src/game/GameManager.d
@@ -14,6 +14,8 @@ struct Status{
   bool isDamaged = false;
   bool willDead = false;
   bool dead = false;
+  
+  GameObject[] haveObj;
 }
 
 struct Persist {
diff --git a/src/game/entities/Bomb.d b/src/game/entities/Bomb.d
index b7a0833..00bda08 100644
--- a/src/game/entities/Bomb.d
+++ b/src/game/entities/Bomb.d
@@ -5,22 +5,29 @@ import game;
 import engine;
 
 class Bomb : GameObject {
+  enum Affi {
+    Enemy,
+    Hero,
+  }
+
   SpriteRenderer rend;
   Transform tform;
   RigidBody rigid;
   string imgdir() => "bomb.png";
   AudioSource se;
+  Affi af;
 
   bool isExplosion = false;
 
-  this() {
+  this(Affi af = Affi.Enemy) {
     auto bokan = new AudioAsset("dogaan.mp3");
     se = register(new AudioSource(bokan));
-    se.volume(20);
+    se.volume(60);
     addTag("Bomb");
     // 僕はHikakin 死亡
     tform = register(new Transform(tform.Org.Spawn));
     tform.scale = Vec2(0.2, 0.2);
+    this.af = af;
   }
 
   override void setup() {
@@ -37,13 +44,19 @@ class Bomb : GameObject {
   }
 
   override void collide(GameObject go) {
-    if(go.getTag("Missile")) explosion;
+    if(go.getTag("Missile") || af == Affi.Hero) explosion(go);
+    else if(go.getTag("Hero")) {
+      auto aa = new AudioAsset("gather.mp3");
+      se.set(aa);
+      se.volume(100);
+      se.play(0);
+      gm.heroStatus.haveObj ~= new Bomb(Affi.Hero);
+      bye;
+    }
   }
 
-  void explosion() {
+  void explosion(GameObject go) {
     if(!isExplosion) {
-      //se.play(1);
-      register(new Explosion);
       component!BoxCollider.isTrigger = true;
 
       // damage function
@@ -52,11 +65,21 @@ class Bomb : GameObject {
       auto ptf = gm.hero.component!Transform;
       Vec2 r = ptf.pos - tform.pos;
       real len = r.size;
-      Status* pstat = gm.heroStatus();
-      if(!pstat.star)pstat.life -= cast(int)dmgf(len);
+      Status* stat;
+      if(af == Affi.Enemy) {
+        stat = gm.heroStatus();
+      } else {
+        if(go.getTag("Hero")) return;
+        auto keys = go in gm.status;
+        if(keys !is null) stat = gm.status[go];
+        else return;
+      }
+      if(!stat.star) stat.life -= cast(int)dmgf(len);
       rigid.addForce(r * dmgf(len));
       dbg("damaged! :", dmgf(len));
 
+      se.play(1);
+      register(new Explosion);
       isExplosion = true;
     }
   } // 爆発は芸術なのかもしれませんね
diff --git a/src/game/entities/Hero.d b/src/game/entities/Hero.d
index 90e5126..c7cb494 100644
--- a/src/game/entities/Hero.d
+++ b/src/game/entities/Hero.d
@@ -21,6 +21,7 @@ class Hero: GameObject {
 
   Timer rndtmr;
   Timer dashtmr;
+  Timer bombdtmr;
   bool isDash;
   Kalashnikov ak;
 
@@ -57,6 +58,7 @@ class Hero: GameObject {
 
     rndtmr = new Timer;
     dashtmr = new Timer;
+    bombdtmr = new Timer;
   }
 
   override void loop() {
@@ -88,7 +90,13 @@ class Hero: GameObject {
         dust.component!Transform.initPos = Vec2(0, rend.size.x);
         dashtmr.reset;
       }
-    }else{
+    } else if(im.key('t') && gm.heroStatus.haveObj !is null && gm.heroStatus.haveObj.length != 0 && bombdtmr.cur >= 2_000) {
+      auto bm = register(gm.heroStatus.haveObj[$-1]);
+      gm.heroStatus.haveObj.popBack;
+      bm.component!RigidBody.addForce(Vec2(300, 450) * dir);
+      bm.component!Transform.initPos = Vec2(80, 0) * dir;
+      bombdtmr.reset;
+    } else {
       rb.v.x = 0;
       rb.v.x = 0;
       isDash = false;