diff --git a/Packages/manifest.json b/Packages/manifest.json
index 1c33961..b9829e7 100644
--- a/Packages/manifest.json
+++ b/Packages/manifest.json
@@ -1,6 +1,7 @@
 {
   "dependencies": {
     "com.coffee.development": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/Development",
+    "com.coffee.minimal-resource": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/MinimalResource",
     "com.coffee.nano-monitor": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
     "com.unity.ide.rider": "3.0.31",
     "com.unity.test-framework": "1.1.33",
diff --git a/Packages/packages-lock.json b/Packages/packages-lock.json
index 575c773..defda3e 100644
--- a/Packages/packages-lock.json
+++ b/Packages/packages-lock.json
@@ -5,7 +5,14 @@
       "depth": 0,
       "source": "git",
       "dependencies": {},
-      "hash": "4e5f735ccf956ee469b5014ae781068c49a2825d"
+      "hash": "52987fb6e66e7fc48498d8d164c3c8808de4de6b"
+    },
+    "com.coffee.minimal-resource": {
+      "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/MinimalResource",
+      "depth": 0,
+      "source": "git",
+      "dependencies": {},
+      "hash": "52987fb6e66e7fc48498d8d164c3c8808de4de6b"
     },
     "com.coffee.nano-monitor": {
       "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
@@ -14,7 +21,7 @@
       "dependencies": {
         "com.unity.ugui": "1.0.0"
       },
-      "hash": "4e5f735ccf956ee469b5014ae781068c49a2825d"
+      "hash": "52987fb6e66e7fc48498d8d164c3c8808de4de6b"
     },
     "com.coffee.ui-particle": {
       "version": "file:src",
diff --git a/Packages/src/Runtime/Coffee.UIParticle.R.dll b/Packages/src/Runtime/Coffee.UIParticle.R.dll
new file mode 100644
index 0000000..de59dad
Binary files /dev/null and b/Packages/src/Runtime/Coffee.UIParticle.R.dll differ
diff --git a/Packages/src/Runtime/Coffee.UIParticle.R.dll.meta b/Packages/src/Runtime/Coffee.UIParticle.R.dll.meta
new file mode 100644
index 0000000..fb448a1
--- /dev/null
+++ b/Packages/src/Runtime/Coffee.UIParticle.R.dll.meta
@@ -0,0 +1,33 @@
+fileFormatVersion: 2
+guid: 4d73b3825bf044d418ae21bb331d3902
+PluginImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  iconMap: {}
+  executionOrder: {}
+  defineConstraints: []
+  isPreloaded: 0
+  isOverridable: 1
+  isExplicitlyReferenced: 0
+  validateReferences: 1
+  platformData:
+  - first:
+      Any: 
+    second:
+      enabled: 1
+      settings: {}
+  - first:
+      Editor: Editor
+    second:
+      enabled: 0
+      settings:
+        DefaultValueInitialized: true
+  - first:
+      Windows Store Apps: WindowsStoreApps
+    second:
+      enabled: 0
+      settings:
+        CPU: AnyCPU
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Packages/src/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs b/Packages/src/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs
index 21ff15a..7f5326a 100644
--- a/Packages/src/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs
+++ b/Packages/src/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs
@@ -133,6 +133,8 @@ public abstract class PreloadedProjectSettings<T> : PreloadedProjectSettings
 #if UNITY_EDITOR
         private string _jsonText;
 
+        public static bool hasInstance => s_Instance;
+
         public static T instance
         {
             get
diff --git a/Packages/src/Runtime/Internal/Utilities/MaterialRepository.cs b/Packages/src/Runtime/Internal/Utilities/MaterialRepository.cs
index 7f15945..cd3c05e 100644
--- a/Packages/src/Runtime/Internal/Utilities/MaterialRepository.cs
+++ b/Packages/src/Runtime/Internal/Utilities/MaterialRepository.cs
@@ -15,7 +15,7 @@ internal static class MaterialRepository
 
 #if UNITY_EDITOR
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
-        private static void Clear()
+        public static void Clear()
         {
             s_Repository.Clear();
         }
diff --git a/Packages/src/Runtime/Internal/Utilities/Misc.cs b/Packages/src/Runtime/Internal/Utilities/Misc.cs
index 26c03cf..3f6fb47 100644
--- a/Packages/src/Runtime/Internal/Utilities/Misc.cs
+++ b/Packages/src/Runtime/Internal/Utilities/Misc.cs
@@ -69,6 +69,8 @@ public static T[] GetAllComponentsInPrefabStage<T>() where T : Component
 
             return prefabStage.prefabContentsRoot.GetComponentsInChildren<T>(true);
         }
+
+        public static bool isBatchOrBuilding => Application.isBatchMode || BuildPipeline.isBuildingPlayer;
 #endif
     }
 }
diff --git a/ProjectSettings/MinimalResourceSettings.json b/ProjectSettings/MinimalResourceSettings.json
new file mode 100644
index 0000000..1203a9b
--- /dev/null
+++ b/ProjectSettings/MinimalResourceSettings.json
@@ -0,0 +1,11 @@
+{
+    "MonoBehaviour": {
+        "m_Enabled": true,
+        "m_EditorHideFlags": 0,
+        "m_Name": "",
+        "m_EditorClassIdentifier": "",
+        "m_OutputDllPaths": [
+            "Packages/com.coffee.ui-particle/Runtime/Coffee.UIParticle.R.dll"
+        ]
+    }
+}
\ No newline at end of file