diff --git a/src/main/java/cactusServer/entities/Instance.java b/src/main/java/cactusServer/entities/Instance.java
index 930931d..54ed46b 100644
--- a/src/main/java/cactusServer/entities/Instance.java
+++ b/src/main/java/cactusServer/entities/Instance.java
@@ -2,6 +2,8 @@
 
 import java.util.HashMap;
 import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
 
 import org.ntlab.radishforandroidstudio.framework.model3D.BaseObject3D;
 import org.ntlab.radishforandroidstudio.framework.model3D.Object3D;
@@ -255,6 +257,24 @@
 		}
 		return null;
 	}
+	
+	public void removeDeadBullets() {
+		Iterator<HashMap<String, Bullet>> playersBulletsIt = bulletMap.values().iterator();
+		while (playersBulletsIt.hasNext()) {
+			Map<String, Bullet> playersBullets = playersBulletsIt.next();
+			Iterator<Map.Entry<String, Bullet>> bulletEntryIt = playersBullets.entrySet().iterator();
+			while (bulletEntryIt.hasNext()) {
+				Map.Entry<String, Bullet> bulletEntry = bulletEntryIt.next();
+				Bullet bullet = bulletEntry.getValue();
+				if (!bullet.isAlive()) {
+					String bulletId = bulletEntry.getKey();
+					bulletEntryIt.remove();
+					universe.displace(bullet.getPlaceable());
+					System.out.println(bulletId + "�폜");
+				}
+			}
+		}
+	}
 
 	public static enum State {
 		AVAILABLE, MAINTENANCE;