diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 40710671..fa2ac926 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -69,6 +69,9 @@
     <Compile Include="Eushully\ArcGPC.cs" />
     <Compile Include="Eushully\ImageGP.cs" />
     <Compile Include="ImagePSD.cs" />
+    <Compile Include="Propeller\ArcMGR.cs" />
+    <Compile Include="Propeller\ArcMPK.cs" />
+    <Compile Include="Propeller\ImageMGR.cs" />
     <Compile Include="TechnoBrain\ImageIPH.cs" />
     <Compile Include="ArcDX.cs" />
     <Compile Include="ArcMiris.cs" />
diff --git a/ArcFormats/Propeller/ArcMGR.cs b/ArcFormats/Propeller/ArcMGR.cs
new file mode 100644
index 00000000..42c011a3
--- /dev/null
+++ b/ArcFormats/Propeller/ArcMGR.cs
@@ -0,0 +1,136 @@
+//! \file       ArcMGR.cs
+//! \date       Sat Nov 21 02:05:59 2015
+//! \brief      Propeller multi-frame image.
+//
+// Copyright (C) 2015 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Linq;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Propeller
+{
+    [Export(typeof(ArchiveFormat))]
+    public class MgrOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "MGR"; } }
+        public override string Description { get { return "Propeller multi-frame image"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.EndsWith (".mgr", StringComparison.InvariantCultureIgnoreCase))
+                return null;
+            int count = file.View.ReadInt16 (0);
+            if (count <= 0 || count >= 0x100)
+                return null;
+            uint current = 2;
+            uint first_offset = current;
+            if (count > 1)
+            {
+                first_offset = file.View.ReadUInt32 (current);
+                if (first_offset != 2 + count * 4)
+                    return null;
+            }
+            if (!file.View.AsciiEqual (first_offset+9, "BM"))
+                return null;
+            string base_name = Path.GetFileNameWithoutExtension (file.Name);
+            var dir = new List<Entry> (count);
+            if (count > 1)
+            {
+                for (int i = 0; i < count; ++i)
+                {
+                    var entry = new PackedEntry {
+                        Name = string.Format ("{0}#{1:D4}.bmp", base_name, i),
+                        Type = "image",
+                        Offset = file.View.ReadUInt32 (current),
+                    };
+                    if (entry.Offset < first_offset || entry.Offset >= file.MaxOffset)
+                        return null;
+                    dir.Add (entry);
+                    current += 4;
+                }
+            }
+            else
+            {
+                dir.Add (new PackedEntry { Name = base_name+".bmp", Type = "image", Offset = current });
+            }
+            foreach (var entry in dir.Cast<PackedEntry>())
+            {
+                entry.UnpackedSize  = file.View.ReadUInt32 (entry.Offset);
+                entry.Size          = file.View.ReadUInt32 (entry.Offset+4);
+                if (entry.UnpackedSize < 0x36 || entry.Size > file.MaxOffset-entry.Offset)
+                    return null;
+                entry.Offset += 8;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            using (var input = arc.File.CreateStream (entry.Offset, entry.Size))
+            {
+                var bmp = new byte[(entry as PackedEntry).UnpackedSize];
+                Decompress (input, bmp);
+                return new MemoryStream (bmp);
+            }
+        }
+
+        static public int Decompress (Stream input, byte[] output)
+        {
+            int dst = 0;
+            while (dst < output.Length)
+            {
+                int count = input.ReadByte();
+                if (-1 == count)
+                    break;
+                if (count < 0x20)
+                {
+                    count = Math.Min (count+1, output.Length-dst);
+                    int read = input.Read (output, dst, count);
+                    dst += read;
+                    if (read < count)
+                        break;
+                }
+                else
+                {
+                    int offset = ((count & 0x1F) << 8) + 1;
+                    count >>= 5;
+                    if (7 == count)
+                        count += input.ReadByte();
+                    offset += input.ReadByte();
+                    if (offset >= dst)
+                        throw new InvalidFormatException();
+                    count = Math.Min (count+2, output.Length-dst);
+                    Binary.CopyOverlapped (output, dst - offset, dst, count);
+                    dst += count;
+                }
+            }
+            return dst;
+        }
+    }
+}
diff --git a/ArcFormats/Propeller/ArcMPK.cs b/ArcFormats/Propeller/ArcMPK.cs
new file mode 100644
index 00000000..9eae2473
--- /dev/null
+++ b/ArcFormats/Propeller/ArcMPK.cs
@@ -0,0 +1,87 @@
+//! \file       ArcMPK.cs
+//! \date       Sat Nov 21 00:56:44 2015
+//! \brief      Propeller resource archive.
+//
+// Copyright (C) 2015 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;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Propeller
+{
+    [Export(typeof(ArchiveFormat))]
+    public class MpkOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "MPK"; } }
+        public override string Description { get { return "Propeller resources archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            uint index_offset = file.View.ReadUInt32 (0);
+            int count = file.View.ReadInt32 (4);
+            if (index_offset >= file.MaxOffset || !IsSaneCount (count))
+                return null;
+            uint index_size = (uint)count * 0x28u;
+            if (index_size > file.MaxOffset - index_offset)
+                return null;
+            var index = file.View.ReadBytes (index_offset, index_size);
+            // last byte of the first filename presumably is zero
+            byte key = index[0x1F];
+            for (int i = 0; i < index.Length; ++i)
+                index[i] ^= key;
+
+            int current = 0;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                int name_offset = '\\' == index[current] ? 1 : 0;
+                var name = Binary.GetCString (index, current+name_offset, 0x20-name_offset);
+                if (0 == name.Length)
+                    return null;
+                var entry = FormatCatalog.Instance.Create<Entry> (name);
+                entry.Offset = LittleEndian.ToUInt32 (index, current+0x20);
+                entry.Size   = LittleEndian.ToUInt32 (index, current+0x24);
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                current += 0x28;
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            if (!entry.Name.EndsWith (".msc", StringComparison.InvariantCultureIgnoreCase))
+                return base.OpenEntry (arc, entry);
+            var data = arc.File.View.ReadBytes (entry.Offset, entry.Size);
+            for (int i = 0; i < data.Length; ++i)
+                data[i] ^= 0x88;
+            return new MemoryStream (data);
+        }
+    }
+}
diff --git a/ArcFormats/Propeller/ImageMGR.cs b/ArcFormats/Propeller/ImageMGR.cs
new file mode 100644
index 00000000..d3a82dc4
--- /dev/null
+++ b/ArcFormats/Propeller/ImageMGR.cs
@@ -0,0 +1,121 @@
+//! \file       ImageMGR.cs
+//! \date       Sat Nov 21 01:58:44 2015
+//! \brief      Propeller compressed bitmap.
+//
+// Copyright (C) 2015 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 GameRes.Utility;
+using System;
+using System.ComponentModel.Composition;
+using System.IO;
+using System.Windows.Media;
+
+namespace GameRes.Formats.Propeller
+{
+    internal class MgrMetaData : ImageMetaData
+    {
+        public int  Offset;
+        public int  PackedSize;
+        public int  UnpackedSize;
+    }
+
+    [Export(typeof(ImageFormat))]
+    public class MgrFormat : ImageFormat
+    {
+        public override string         Tag { get { return "MGR"; } }
+        public override string Description { get { return "Propeller image format"; } }
+        public override uint     Signature { get { return 0; } }
+
+        public override ImageMetaData ReadMetaData (Stream stream)
+        {
+            using (var reader = new ArcView.Reader (stream))
+            {
+                int count = reader.ReadInt16();
+                if (count <= 0 || count >= 0x100)
+                    return null;
+                int offset;
+                if (count > 1)
+                {
+                    offset = reader.ReadInt32();
+                    if (offset != 2 + count * 4)
+                        return null;
+                }
+                else
+                    offset = 2;
+                stream.Position = offset;
+                int unpacked_size = reader.ReadInt32();
+                int packed_size = reader.ReadInt32();
+                offset += 8;
+                if (offset + packed_size > stream.Length)
+                    return null;
+                byte[] header = new byte[0x36];
+                if (0x36 != MgrOpener.Decompress (stream, header)
+                    || header[0] != 'B' || header[1] != 'M')
+                    return null;
+                using (var bmp = new MemoryStream (header))
+                {
+                    var info = Bmp.ReadMetaData (bmp);
+                    if (null == info)
+                        return null;
+                    return new MgrMetaData
+                    {
+                        Width = info.Width,
+                        Height = info.Height,
+                        BPP = info.BPP,
+                        Offset = offset,
+                        PackedSize = packed_size,
+                        UnpackedSize = unpacked_size,
+                    };
+                }
+            }
+        }
+
+        public override ImageData Read (Stream stream, ImageMetaData info)
+        {
+            var meta = (MgrMetaData)info;
+            stream.Position = meta.Offset;
+            var data = new byte[meta.UnpackedSize];
+            if (data.Length != MgrOpener.Decompress (stream, data))
+                throw new InvalidFormatException();
+            if (meta.BPP != 32)
+            {
+                using (var bmp = new MemoryStream (data))
+                    return Bmp.Read (bmp, info);
+            }
+            // special case for 32bpp bitmaps with alpha-channel
+            int stride = (int)meta.Width * 4;
+            var pixels = new byte[stride * (int)meta.Height];
+            int src = LittleEndian.ToInt32 (data, 0xA);
+            for (int dst = stride*((int)meta.Height-1); dst >= 0; dst -= stride)
+            {
+                Buffer.BlockCopy (data, src, pixels, dst, stride);
+                src += stride;
+            }
+            return ImageData.Create (info, PixelFormats.Bgra32, null, pixels);
+        }
+
+        public override void Write (Stream file, ImageData image)
+        {
+            throw new System.NotImplementedException ("MgrFormat.Write not implemented");
+        }
+    }
+}
diff --git a/supported.html b/supported.html
index 9e0e46d8..272b5a8c 100644
--- a/supported.html
+++ b/supported.html
@@ -53,6 +53,7 @@ Saimin Gakuen<br/>
 <tr class="odd"><td>*.bmz</td><td><tt>ZLC3</tt></td><td>Yes</td></tr>
 <tr><td>*.int</td><td><tt>KIF</tt></td><td>Yes<a href="#note-1" class="footnote">1</a></td><td rowspan="2">CatSystem2</td><td rowspan="2">
 Grisaia no Kajitsu<br/>
+Kamikaze ☆ Explorer!<br/>
 Makai Tenshi Djibril -Episode 4-<br/>
 Shukufuku no Campanella<br/>
 TsunaBan ♥ Love Mix<br/>
@@ -153,6 +154,7 @@ Shikkoku no Sharnoth<br/>
 <tr class="odd"><td>*.lwg</td><td><tt>LG</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.wcg</td><td><tt>WGq</tt></td><td>Yes</td></tr>
 <tr><td>*.xp3</td><td><tt>XP3</tt></td><td>Yes</td><td rowspan="2">KiriKiri</td><td rowspan="2">
+Aozora Gakko no Sensei-kun<br/>
 Cafe Sourire<br/>
 Coμ<br/>
 Damegane<br/>
@@ -168,6 +170,7 @@ Nuki Doki!<br/>
 Okiba ga Nai!<br/>
 Ore no Saimin Fantasia<br/>
 Seirei Tenshou<br/>
+Se-kirara<br/>
 Sharin no Kuni, Himawari no Shoujo<br/>
 Swan Song<br/>
 Zecchou Spiral!!<br/>
@@ -206,12 +209,14 @@ Nikutai Ten'i<br/>
 <tr><td>*.dat<br/>*.arc</td><td>-<br/><tt>M2TYPE</tt></td><td>No</td><td rowspan="4">FFA System/G-SYS</td><td rowspan="4">
 Dokusen Kango<br/>
 Hensai Keikaku<br/>
+Inen no Yakata<br/>
 Inran OL Sawatari Tokiko<br/>
 Kunoichi Kikyou ~Gensou Kannou Emaki~<br/>
 Momo x Momi<br/>
 Michibikareshi Mono-tachi no Rakuen ~BEDLAM~<br/>
 Onsen Kankou Yukemuri Chijou<br/>
 Ryoujoku Costume Play<br/>
+Seikoujo Claudia<br/>
 </td></tr>
 <tr><td>*.pt1</td><td>-</td><td>No</td></tr>
 <tr><td>*.wa1</td><td>-</td><td>No</td></tr>
@@ -333,6 +338,7 @@ Maid no Yakata ~Zetsubou Hen~<br/>
 <tr class="odd"><td>*.pcm</td><td><tt>XPCM</tt></td><td>No</td></tr>
 <tr><td>*.pak</td><td><tt>CHERRY PACK 2.0</tt><br/>-</td><td>No</td><td>Cherry</td><td>
 Double<br/>
+Exile ~Blood Royal 2~<br/>
 Kimon Youitan<br/>
 Unbalance<br/>
 </td></tr>
@@ -390,6 +396,7 @@ Mamagoto<br/>
 <tr class="odd"><td>*.bin+*.pak</td><td><tt>hed</tt></td><td>No</td><td rowspan="2">elf</td><td rowspan="2">Adult Video King</td></tr>
 <tr class="odd"><td>*.hip<br/>*.hiz<br/></td><td><tt>hip</tt><br/><tt>hiz</tt></td><td>No</td></tr>
 <tr><td>*.gpk+*.gtb<br/>*.vpk+*.vtb</td><td>-</td><td>No</td><td rowspan="3">Black Cyc</td><td rowspan="3">
+Before Dawn Daybreak ~Shinen no Utahime~<br/>
 Gun-Katana<br/>
 Yami no Koe Zero<br/>
 </td></tr>
@@ -498,6 +505,10 @@ Ippai Shimasho<br/>
 <tr><td>*.gpc+*.gph<br/>*.snd+*.snh<br/>*.snr+*.snh</td><td>-</td><td>No</td><td>Eushully</td><td>
 Genrin no Kishougun<br/>
 </td></tr>
+<tr><td>*.mpk</td><td>-</td><td>No</td><td rowspan="2">propeller</td><td rowspan="2">
+Bullet Butlers<br/>
+</td></tr>
+<tr><td>*.mgr</td><td>-</td><td>No</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>