diff --git a/ArcFormats/DigitalWorks/ImageTM2.cs b/ArcFormats/DigitalWorks/ImageTM2.cs
index b7be2d45..25310143 100644
--- a/ArcFormats/DigitalWorks/ImageTM2.cs
+++ b/ArcFormats/DigitalWorks/ImageTM2.cs
@@ -23,6 +23,7 @@
 // IN THE SOFTWARE.
 //
 
+using GameRes.Formats.Strings;
 using System;
 using System.ComponentModel.Composition;
 using System.IO;
@@ -36,7 +37,7 @@ namespace GameRes.Formats.DigitalWorks
         public int  PaletteSize;
         public int  HeaderSize;
         public int  Colors;
-        public bool X_A = false;
+        public byte X_A;
     }
 
     [Export(typeof(ImageFormat))]
@@ -49,8 +50,16 @@ namespace GameRes.Formats.DigitalWorks
         public Tim2Format ()
         {
             Extensions = new string[] { "tm2", "ext" };
+            Settings = new[] { AlphaFormat };
         }
 
+        FixedSetSetting AlphaFormat = new FixedSetSetting(Properties.Settings.Default)
+        {
+            Name = "TIM2AlphaFormat",
+            Text = arcStrings.Tim2AlphaFormat,
+            ValuesSet = new[] { "No Alpha", "RGBX", "RGBA" },
+        };
+
         public override ImageMetaData ReadMetaData (IBinaryStream file)
         {
             var header = file.ReadHeader (0x40);
@@ -63,6 +72,14 @@ namespace GameRes.Formats.DigitalWorks
             case 5: bpp = 8; break;
             default: return null;
             }
+            byte alpha;
+            switch (AlphaFormat.Get<String>())
+            {
+                case "No Alpha": alpha = 0; break;
+                case "RGBX": alpha = 7; break;
+                case "RGBA":
+                default: alpha = 8; break;
+            }
             return new Tim2MetaData {
                 Width  = header.ToUInt16 (0x24),
                 Height = header.ToUInt16 (0x26),
@@ -70,7 +87,7 @@ namespace GameRes.Formats.DigitalWorks
                 PaletteSize = header.ToInt32 (0x14),
                 HeaderSize = header.ToUInt16 (0x1C),
                 Colors  = header.ToUInt16 (0x1E),
-                X_A = header.ToUInt16(0x30) == 0, // not so sure, there will be omissions
+                X_A = alpha, //header.ToUInt16(0x30) == 0?// not so sure, there will be omissions
             };
         }
 
@@ -117,7 +134,7 @@ namespace GameRes.Formats.DigitalWorks
             if (pixel_size <= 8 && m_info.Colors > 0)
                 Palette = ReadPalette (m_info.Colors, m_info.X_A);
 
-            if (pixel_size == 3 || pixel_size == 4 && !m_info.X_A)
+            if (pixel_size == 3 || pixel_size == 4 && m_info.X_A == 8)
             {
                 for (int i = 0; i < image_size; i += pixel_size)
                 {
@@ -126,7 +143,7 @@ namespace GameRes.Formats.DigitalWorks
                     output[i+2] = r;
                 }
             }
-            if (pixel_size == 4 && m_info.X_A)
+            if (pixel_size == 4 && m_info.X_A == 7)
             {
                 for (int i = 0; i < image_size; i += 4)
                 {
@@ -139,12 +156,23 @@ namespace GameRes.Formats.DigitalWorks
                         output[i + 3] = (byte)(output[i + 3] << 1);
                 }
             }
+            if (pixel_size == 4 && m_info.X_A == 0)
+            {
+                for (int i = 0; i < image_size; i += 4)
+                {
+                    byte r = output[i];
+                    output[i] = output[i + 2];
+                    output[i + 2] = r;
+                    output[i + 3] = byte.MaxValue;
+                }
+            }
             return output;
         }
 
-        BitmapPalette ReadPalette (int color_num, bool X_A = false)
+        BitmapPalette ReadPalette (int color_num, byte X_A = 8)
         {
-            var source = ImageFormat.ReadColorMap (m_input.AsStream, color_num, X_A ? PaletteFormat.RgbX : PaletteFormat.RgbA);
+            var source = ImageFormat.ReadColorMap (m_input.AsStream,
+                color_num, X_A == 7 ? PaletteFormat.RgbX : X_A == 0 ? PaletteFormat.RgbX_Disposed : PaletteFormat.RgbA);
             var color_map = new Color[color_num];
 
             int parts = color_num / 32;
diff --git a/ArcFormats/DigitalWorks/ImageTM2arc.cs b/ArcFormats/DigitalWorks/ImageTM2arc.cs
index 9b57c6a0..f7be9250 100644
--- a/ArcFormats/DigitalWorks/ImageTM2arc.cs
+++ b/ArcFormats/DigitalWorks/ImageTM2arc.cs
@@ -15,7 +15,9 @@ namespace GameRes.Formats.DigitalWorks
         public TM2ArkFormat()
         {
             Extensions = new string[] { "tm2" };
+            Settings = null;
         }
+
         public override ImageMetaData ReadMetaData(IBinaryStream stream)
         {
             stream.Position = 9;
diff --git a/ArcFormats/MAGES/ArcARC20.cs b/ArcFormats/MAGES/ArcARC20.cs
index a8c3f1cd..9c7a16c5 100644
--- a/ArcFormats/MAGES/ArcARC20.cs
+++ b/ArcFormats/MAGES/ArcARC20.cs
@@ -11,7 +11,7 @@ namespace GameRes.Formats.MAGES
         public override string Tag { get { return "ARC/Princess Soft ARC20"; } }
         public override string Description { get { return "Princess Soft PS2 resource archive"; } }
         public override uint Signature { get { return 0x20435241; } } // 'ARC\x20'
-        public override bool IsHierarchic { get { return false; } }
+        public override bool IsHierarchic { get { return true; } }
         public override bool CanWrite { get { return false; } }
 
         public override ArcFile TryOpen(ArcView file)
diff --git a/ArcFormats/Properties/Settings.Designer.cs b/ArcFormats/Properties/Settings.Designer.cs
index f22c61a8..4bad779b 100644
--- a/ArcFormats/Properties/Settings.Designer.cs
+++ b/ArcFormats/Properties/Settings.Designer.cs
@@ -837,5 +837,17 @@ namespace GameRes.Formats.Properties {
                 this["NexasEncodingCP"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("RGBA")]
+        public string TIM2AlphaFormat {
+            get {
+                return ((string)(this["TIM2AlphaFormat"]));
+            }
+            set {
+                this["TIM2AlphaFormat"] = value;
+            }
+        }
     }
 }
diff --git a/ArcFormats/Properties/Settings.settings b/ArcFormats/Properties/Settings.settings
index a6aa5543..50457412 100644
--- a/ArcFormats/Properties/Settings.settings
+++ b/ArcFormats/Properties/Settings.settings
@@ -206,5 +206,8 @@
     <Setting Name="NexasEncodingCP" Type="System.Int32" Scope="User">
       <Value Profile="(Default)">932</Value>
     </Setting>
+    <Setting Name="TIM2AlphaFormat" Type="System.String" Scope="User">
+      <Value Profile="(Default)">RGBA</Value>
+    </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file
diff --git a/ArcFormats/Strings/arcStrings.Designer.cs b/ArcFormats/Strings/arcStrings.Designer.cs
index c42b4340..accb3959 100644
--- a/ArcFormats/Strings/arcStrings.Designer.cs
+++ b/ArcFormats/Strings/arcStrings.Designer.cs
@@ -752,6 +752,16 @@ namespace GameRes.Formats.Strings {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Choose Tim2 image alpha format.
+        ///   It can&apos;t be read correctly from the file.
+        /// </summary>
+        public static string Tim2AlphaFormat {
+            get {
+                return ResourceManager.GetString("Tim2AlphaFormat", resourceCulture);
+            }
+        }
+
         /// <summary>
         ///   Looks up a localized string similar to Hex number.
         /// </summary>
diff --git a/ArcFormats/Strings/arcStrings.ja-JP.resx b/ArcFormats/Strings/arcStrings.ja-JP.resx
index 09cb1f5f..ea90ba37 100644
--- a/ArcFormats/Strings/arcStrings.ja-JP.resx
+++ b/ArcFormats/Strings/arcStrings.ja-JP.resx
@@ -501,4 +501,8 @@ Choose encryption scheme or enter a passphrase.</comment>
   <data name="ODNAudioSampleRate" xml:space="preserve">
     <value>Default audio sampling rate</value>
   </data>
+  <data name="Tim2AlphaFormat" xml:space="preserve">
+    <value>Tim2画像のAlpha形式を選択してください。
+ファイルから正しく読み取ることができません。</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/ArcFormats/Strings/arcStrings.resx b/ArcFormats/Strings/arcStrings.resx
index 435a145e..8543086c 100644
--- a/ArcFormats/Strings/arcStrings.resx
+++ b/ArcFormats/Strings/arcStrings.resx
@@ -401,4 +401,8 @@ Choose encryption scheme or enter a passphrase.</value>
   <data name="ODNAudioSampleRate" xml:space="preserve">
     <value>Default audio sampling rate</value>
   </data>
+  <data name="Tim2AlphaFormat" xml:space="preserve">
+    <value>Choose Tim2 image alpha format.
+It can't be read correctly from the file.</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/ArcFormats/Strings/arcStrings.zh-Hans.resx b/ArcFormats/Strings/arcStrings.zh-Hans.resx
index 97a8a221..056eb3ec 100644
--- a/ArcFormats/Strings/arcStrings.zh-Hans.resx
+++ b/ArcFormats/Strings/arcStrings.zh-Hans.resx
@@ -399,4 +399,8 @@
   <data name="ODNAudioSampleRate" xml:space="preserve">
     <value>默认音频采样率</value>
   </data>
+  <data name="Tim2AlphaFormat" xml:space="preserve">
+    <value>选择Tim2图片透明度格式。
+这无法从文件中正确获取。</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/ArcFormats/app.config b/ArcFormats/app.config
index eb7f9ea8..ef1cc161 100644
--- a/ArcFormats/app.config
+++ b/ArcFormats/app.config
@@ -208,6 +208,9 @@
             <setting name="NexasEncodingCP" serializeAs="String">
                 <value>932</value>
             </setting>
+            <setting name="TIM2AlphaFormat" serializeAs="String">
+              <value>RGBA</value>
+            </setting>
         </GameRes.Formats.Properties.Settings>
     </userSettings>
 <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" /></startup>