diff --git a/Legacy/Legacy.csproj b/Legacy/Legacy.csproj
index 55ed7d72..d21fd6d0 100644
--- a/Legacy/Legacy.csproj
+++ b/Legacy/Legacy.csproj
@@ -78,6 +78,7 @@
     <Compile Include="Nanami\ArcBMM.cs" />
     <Compile Include="Nekotaro\ArcNSC.cs" />
     <Compile Include="Nekotaro\ImageGCmp.cs" />
+    <Compile Include="ProjectMyu\ImageKGR.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="QSoft\ImageBPE.cs" />
     <Compile Include="Rain\ArcBIN.cs" />
@@ -94,6 +95,8 @@
     <Compile Include="WestGate\ArcUSF.cs" />
     <Compile Include="WestGate\ArcUWF.cs" />
     <Compile Include="WestGate\ImageNBMP.cs" />
+    <Compile Include="YellowCap\ImageGEF.cs" />
+    <Compile Include="YellowCap\ImageGGF.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\ArcFormats\ArcFormats.csproj">
diff --git a/Legacy/ProjectMyu/ImageKGR.cs b/Legacy/ProjectMyu/ImageKGR.cs
new file mode 100644
index 00000000..536d763f
--- /dev/null
+++ b/Legacy/ProjectMyu/ImageKGR.cs
@@ -0,0 +1,74 @@
+//! \file       ImageKGR.cs
+//! \date       2018 Jan 02
+//! \brief      Project-μ obfuscated bitmap.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.ProjectMyu
+{
+    [Export(typeof(ImageFormat))]
+    public class KgrFormat : ImageFormat
+    {
+        public override string         Tag { get { return "KGR"; } }
+        public override string Description { get { return "Project-μ obfuscated bitmap"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            if (!file.Name.HasExtension (".kgr"))
+                return null;
+            var header = file.ReadHeader (0x36);
+            if (!header.AsciiEqual ("BM"))
+                return null;
+            int bpp = header.ToUInt16 (0x1C);
+            if (bpp != 16 && bpp != 24)
+                return null;
+            return new ImageMetaData {
+                Width = header.ToUInt32 (0x12),
+                Height = header.ToUInt32 (0x16),
+                BPP = bpp,
+            };
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            file.Position = 0x36;
+            int stride = (int)info.Width * info.BPP / 8;
+            var pixels = file.ReadBytes (stride * (int)info.Height);
+            PixelFormat format;
+            if (16 == info.BPP)
+                format = PixelFormats.Bgr565;
+            else
+                format = PixelFormats.Bgr24;
+            return ImageData.CreateFlipped (info, format, null, pixels, stride);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("KgrFormat.Write not implemented");
+        }
+    }
+}
diff --git a/Legacy/YellowCap/ImageGEF.cs b/Legacy/YellowCap/ImageGEF.cs
new file mode 100644
index 00000000..5865be74
--- /dev/null
+++ b/Legacy/YellowCap/ImageGEF.cs
@@ -0,0 +1,67 @@
+//! \file       ImageGEF.cs
+//! \date       2018 Jan 02
+//! \brief      PNG-embedded image.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.YellowCap
+{
+    [Export(typeof(ImageFormat))]
+    public class GefFormat : ImageFormat
+    {
+        public override string         Tag { get { return "GEF"; } }
+        public override string Description { get { return "PNG-embedded image format"; } }
+        public override uint     Signature { get { return 0x00010100; } }
+
+        public GefFormat ()
+        {
+            Signatures = new uint[] { 0x00010100, 0xFF010100 };
+        }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (0x10);
+            if (header.ToUInt32 (0xC) != Png.Signature)
+                return null;
+            file.Position = 0xC;
+            var info = Png.ReadMetaData (file);
+            if (null == info || info.Width != header.ToUInt32 (4) || info.Height != header.ToUInt32 (8))
+                return null;
+            return info;
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            using (var part = new StreamRegion (file.AsStream, 0xC, true))
+            using (var png = new BinaryStream (part, file.Name))
+                return Png.Read (png, info);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("GefFormat.Write not implemented");
+        }
+    }
+}
diff --git a/Legacy/YellowCap/ImageGGF.cs b/Legacy/YellowCap/ImageGGF.cs
new file mode 100644
index 00000000..6689cc4f
--- /dev/null
+++ b/Legacy/YellowCap/ImageGGF.cs
@@ -0,0 +1,69 @@
+//! \file       ImageGGF.cs
+//! \date       2018 Jan 02
+//! \brief      BMP-embedded image.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.YellowCap
+{
+    [Export(typeof(ImageFormat))]
+    public class GgfFormat : ImageFormat
+    {
+        public override string         Tag { get { return "GGF"; } }
+        public override string Description { get { return "BMP-embedded image format"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (IBinaryStream file)
+        {
+            var header = file.ReadHeader (10);
+            if (!header.AsciiEqual (8, "BM"))
+                return null;
+            using (var bmp = OpenBmpStream (file))
+            {
+                var info = Bmp.ReadMetaData (bmp);
+                if (null == info || info.Width != header.ToUInt32 (0) || info.Height != header.ToUInt32 (4))
+                    return null;
+                return info;
+            }
+        }
+
+        public override ImageData Read (IBinaryStream file, ImageMetaData info)
+        {
+            using (var bmp = OpenBmpStream (file))
+                return Bmp.Read (bmp, info);
+        }
+
+        IBinaryStream OpenBmpStream (IBinaryStream file)
+        {
+            var part = new StreamRegion (file.AsStream, 8, true);
+            return new BinaryStream (part, file.Name);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("GgfFormat.Write not implemented");
+        }
+    }
+}