diff --git a/src/main/java/cactusServer/entities/Entity3D.java b/src/main/java/cactusServer/entities/Entity3D.java
index 59caad6..92ed3be 100644
--- a/src/main/java/cactusServer/entities/Entity3D.java
+++ b/src/main/java/cactusServer/entities/Entity3D.java
@@ -19,6 +19,7 @@
 		return placeable;
 	}
 
+	@JSONHint(ignore = true)
 	public void setPlaceable(Placeable placeable) {
 		this.placeable = placeable;
 	}
diff --git a/src/main/java/cactusServer/entities/Instance.java b/src/main/java/cactusServer/entities/Instance.java
index 12d0099..c7186b7 100644
--- a/src/main/java/cactusServer/entities/Instance.java
+++ b/src/main/java/cactusServer/entities/Instance.java
@@ -144,18 +144,6 @@
 		objMap.put(id, object);
 		return new IDAddressedEntity(id, object);
 	}
-	
-	/**
-	 * InstancesRest�Ƃ̃G���[�����p (��ŏ���)
-	 */
-	public IDAddressedEntity createObject(Position3D position, Velocity3D velocity, AngularVelocity3D angularVelocity,
-			Angle angle, Attribute attribute, ObjectModel model) {
-		String id = RandomStringGenerator.generateUniqueString(Object.UNIQUE_ID_LENGTH,
-				RandomStringGenerator.ALPHA_NUMERIC, objMap.keySet());
-		Object object = new Object(position, velocity, angularVelocity, angle, attribute, "");
-		objMap.put(id, object);
-		return new IDAddressedEntity(id, object);
-	}
 
 	public IDAddressedEntity createCharacter(String instanceId, String accountURI, String name, Position3D position,
 			Angle angle, String model) {
diff --git a/src/main/java/cactusServer/entities/Player.java b/src/main/java/cactusServer/entities/Player.java
index fa70f8c..2ce7105 100644
--- a/src/main/java/cactusServer/entities/Player.java
+++ b/src/main/java/cactusServer/entities/Player.java
@@ -144,7 +144,7 @@
 		this.emoteState.setEmoteType(animationClassToStart);
 	}
 
-	public void destroyPlayer() {
+	public void destroy() {
 		writeCharacterData(characterURI);
 	}
 
diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index 4d3bc6d..78afed7 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -103,6 +103,8 @@
 	}
 
 	public Player destroyPlayer(String playerId) {
+		Player player = playerMap.get(playerId);
+		player.destroy();
 		return playerMap.remove(playerId);
 	}
 }