diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index e04e7c26..f8d2c8aa 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -230,6 +230,8 @@
     <Compile Include="Tmr-Hiro\ImageGRD.cs" />
     <Compile Include="TopCat\ArcTCD3.cs" />
     <Compile Include="TopCat\ImageSPD.cs" />
+    <Compile Include="Triangle\ArcCGF.cs" />
+    <Compile Include="Triangle\ArcIAF.cs" />
     <Compile Include="uGOS\ArcDET.cs" />
     <Compile Include="uGOS\ImageBMP.cs" />
     <Compile Include="UMeSoft\ArcPK.cs" />
diff --git a/ArcFormats/Triangle/ArcCGF.cs b/ArcFormats/Triangle/ArcCGF.cs
new file mode 100644
index 00000000..b6b497fb
--- /dev/null
+++ b/ArcFormats/Triangle/ArcCGF.cs
@@ -0,0 +1,119 @@
+//! \file       ArcCGF.cs
+//! \date       Tue Feb 02 00:47:55 2016
+//! \brief      route2 engine CG archive.
+//
+// Copyright (C) 2016 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.Compression;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Triangle
+{
+    internal class CgfEntry : Entry
+    {
+        public uint Flags;
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public class CgfOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "CGF"; } }
+        public override string Description { get { return "route2 engine CG 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)
+        {
+            int count = file.View.ReadInt32 (0);
+            if (!IsSaneCount (count) || file.MaxOffset >= ~0xC0000000)
+                return null;
+            uint offset1 = file.View.ReadUInt32 (0x14);
+            uint offset2 = file.View.ReadUInt32 (0x20);
+            uint entry_size, next_offset;
+            if (4+(uint)count*0x14 == (offset1 & ~0xC0000000))
+            {
+                entry_size = 0x14;
+                next_offset = offset1;
+            }
+            else if (4+(uint)count*0x20 == (offset2 & ~0xC0000000))
+            {
+                entry_size = 0x20;
+                next_offset = offset2;
+            }
+            else
+                return null;
+
+            uint index_size = entry_size * (uint)count;
+            if (index_size > file.View.Reserve (4, index_size))
+                return null;
+
+            uint index_offset = 4;
+            var dir = new List<Entry> (count);
+            for (int i = 0; i < count; ++i)
+            {
+                var name = file.View.ReadString (index_offset, entry_size-4);
+                uint flags = next_offset >> 30;
+                Entry entry;
+                if (1 == flags || name.EndsWith (".iaf", StringComparison.InvariantCultureIgnoreCase))
+                    entry = new Entry();
+                else
+                    entry = new CgfEntry { Flags = flags };
+                entry.Name = name;
+                entry.Type = "image";
+                entry.Offset = next_offset & ~0xC0000000;
+
+                index_offset += entry_size;
+                next_offset = i+1 == count ? (uint)file.MaxOffset : file.View.ReadUInt32 (index_offset+entry_size-4);
+                if (next_offset < entry.Offset)
+                    return null;
+                entry.Size = (next_offset & ~0xC0000000) - (uint)entry.Offset;
+                if (!entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+            }
+            return new ArcFile (file, this, dir);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            var cent = entry as CgfEntry;
+            if (null == cent)
+                return base.OpenEntry (arc, entry);
+            var offset = entry.Offset;
+            var header = new byte[12];
+            if (2 == cent.Flags)
+            {
+                arc.File.View.Read (offset, header, 0, 8);
+                offset += 0x10;
+            }
+            uint packed_size = arc.File.View.ReadUInt32 (offset);
+            arc.File.View.Read (offset+4, header, 8, 4);
+            var input = arc.File.CreateStream (offset+8, packed_size);
+            return new PrefixStream (header, input);
+        }
+    }
+}
diff --git a/ArcFormats/Triangle/ArcIAF.cs b/ArcFormats/Triangle/ArcIAF.cs
new file mode 100644
index 00000000..c8926bf5
--- /dev/null
+++ b/ArcFormats/Triangle/ArcIAF.cs
@@ -0,0 +1,76 @@
+//! \file       ArcIAF.cs
+//! \date       Thu Feb 04 03:18:26 2016
+//! \brief      route2 engine multi-frame image.
+//
+// Copyright (C) 2016 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;
+
+namespace GameRes.Formats.Triangle
+{
+    [Export(typeof(ArchiveFormat))]
+    public class IafOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "IAF/MULTI"; } }
+        public override string Description { get { return "route2 engine 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 IafOpener ()
+        {
+            Extensions = new string[] { "iaf" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            if (!file.Name.EndsWith (".iaf", StringComparison.InvariantCultureIgnoreCase)
+                || file.MaxOffset < 0x20)
+                return null;
+            uint size = file.View.ReadUInt32 (1);
+            if (size >= file.MaxOffset || size+0x19 >= file.MaxOffset)
+                return null;
+
+            var base_name = Path.GetFileNameWithoutExtension (file.Name);
+            long current_offset = 0;
+            var dir = new List<Entry>();
+            while (current_offset < file.MaxOffset)
+            {
+                uint packed_size = file.View.ReadUInt32 (current_offset+1);
+                if (0 == packed_size || current_offset+packed_size+0x19 > file.MaxOffset)
+                    return null;
+                var entry = new Entry {
+                    Name = string.Format ("{0}#{1:D3}.IAF", base_name, dir.Count),
+                    Type = "image",
+                    Offset = current_offset,
+                    Size = packed_size + 0x19,
+                };
+                dir.Add (entry);
+                current_offset += entry.Size;
+            }
+            return new ArcFile (file, this, dir);
+        }
+    }
+}
diff --git a/ArcFormats/Triangle/ImageIAF.cs b/ArcFormats/Triangle/ImageIAF.cs
index 46010b2c..12c86512 100644
--- a/ArcFormats/Triangle/ImageIAF.cs
+++ b/ArcFormats/Triangle/ImageIAF.cs
@@ -76,46 +76,20 @@ namespace GameRes.Formats.Triangle
             if (Math.Abs (x) > 4096 || Math.Abs (y) > 4096)
                 return null;
             int pack_type = (unpacked_size >> 30) & 3;
+            if (3 == pack_type)
+                return null;
             unpacked_size &= (int)~0xC0000000;
             stream.Position = data_offset;
-            byte[] bmp;
-            if (0 == pack_type)
-            {
-                using (var reader = new LzssReader (stream, (int)stream.Length-12, 0x26))
-                {
-                    reader.Unpack();
-                    bmp = reader.Data;
-                }
-            }
-            else if (2 == pack_type)
-            {
-                using (var reader = new RleReader (stream, (int)stream.Length-12, 0x26))
-                {
-                    reader.Unpack();
-                    bmp = reader.Data;
-                }
-            }
-            else if (1 == pack_type)
-            {
-                bmp = new byte[0x26];
-                stream.Read (bmp, 0, bmp.Length);
-            }
-            else
-            {
-                return null;
-            }
+            byte[] bmp = UnpackBitmap (stream, pack_type, packed_size, 0x26);
             if (bmp[0] != 'B' && bmp[0] != 'C' || bmp[1] != 'M')
                 return null;
-            int width = LittleEndian.ToInt32 (bmp, 0x12);
-            int height = LittleEndian.ToInt32 (bmp, 0x16);
-            int bpp = LittleEndian.ToInt16 (bmp, 0x1c);
             return new IafMetaData
             {
-                Width = (uint)width,
-                Height = (uint)height,
+                Width = LittleEndian.ToUInt32 (bmp, 0x12),
+                Height = LittleEndian.ToUInt32 (bmp, 0x16),
                 OffsetX = x,
                 OffsetY = y,
-                BPP = bpp,
+                BPP = LittleEndian.ToInt16 (bmp, 0x1c),
                 DataOffset = data_offset,
                 PackedSize = packed_size,
                 UnpackedSize = unpacked_size,
@@ -125,41 +99,16 @@ namespace GameRes.Formats.Triangle
 
         public override ImageData Read (Stream stream, ImageMetaData info)
         {
-            var meta = info as IafMetaData;
-            if (null == meta)
-                throw new ArgumentException ("IafFormat.Read should be supplied with IafMetaData", "info");
-
+            var meta = (IafMetaData)info;
             stream.Position = meta.DataOffset;
-            byte[] bitmap;
-            if (2 == meta.PackType)
-            {
-                using (var reader = new RleReader (stream, meta.PackedSize, meta.UnpackedSize))
-                {
-                    reader.Unpack();
-                    bitmap = reader.Data;
-                }
-            }
-            else if (0 == meta.PackType)
-            {
-                using (var reader = new LzssReader (stream, meta.PackedSize, meta.UnpackedSize))
-                {
-                    reader.Unpack();
-                    bitmap = reader.Data;
-                }
-            }
-            else
-            {
-                bitmap = new byte[meta.UnpackedSize];
-                if (bitmap.Length != stream.Read (bitmap, 0, bitmap.Length))
-                    throw new InvalidFormatException ("Unexpected end of file");
-            }
+            var bitmap = UnpackBitmap (stream, meta.PackType, meta.PackedSize, meta.UnpackedSize);
             if ('C' == bitmap[0])
             {
                 bitmap[0] = (byte)'B';
                 if (info.BPP > 8)
                     bitmap = ConvertCM (bitmap, (int)info.Width, (int)info.Height, info.BPP);
             }
-            if (meta.BPP >= 24) // currently alpha channel could be applied to 24+bpp bitmaps only
+            if (info.BPP >= 24) // currently alpha channel could be applied to 24+bpp bitmaps only
             {
                 try
                 {
@@ -172,7 +121,7 @@ namespace GameRes.Formats.Triangle
                             uint alpha_width = LittleEndian.ToUInt32 (bitmap, bmp_size+0x12);
                             uint alpha_height = LittleEndian.ToUInt32 (bitmap, bmp_size+0x16);
                             if (info.Width == alpha_width && info.Height == alpha_height)
-                                return BitmapWithAlphaChannel (meta, bitmap, bmp_size);
+                                return BitmapWithAlphaChannel (info, bitmap, bmp_size);
                         }
                     }
                 }
@@ -186,6 +135,35 @@ namespace GameRes.Formats.Triangle
                 return base.Read (bmp, info);
         }
 
+        internal static byte[] UnpackBitmap (Stream stream, int pack_type, int packed_size, int unpacked_size)
+        {
+            if (2 == pack_type)
+            {
+                using (var reader = new RleReader (stream, packed_size, unpacked_size))
+                {
+                    reader.Unpack();
+                    return reader.Data;
+                }
+            }
+            else if (0 == pack_type)
+            {
+                using (var reader = new LzssReader (stream, packed_size, unpacked_size))
+                {
+                    reader.Unpack();
+                    return reader.Data;
+                }
+            }
+            else if (1 == pack_type)
+            {
+                var bitmap = new byte[unpacked_size];
+                if (bitmap.Length != stream.Read (bitmap, 0, bitmap.Length))
+                    throw new InvalidFormatException ("Unexpected end of file");
+                return bitmap;
+            }
+            else
+                throw new InvalidFormatException();
+        }
+
         public override void Write (Stream file, ImageData image)
         {
             throw new System.NotImplementedException ("IafFormat.Write not implemented");
diff --git a/supported.html b/supported.html
index cc7536ba..6b06a7a5 100644
--- a/supported.html
+++ b/supported.html
@@ -122,9 +122,10 @@ Sweet Pool<br/>
 Zoku Satsuriku no Django<br/>
 </td></tr>
 <tr class="odd"><td>*.npa</td><td>-</td><td>Yes</td><td>Nitro+</td><td>Steins;Gate</td></tr>
-<tr><td>*.pak</td><td><tt>\002\000\000\000</tt><br/><tt>\003\000\000\000</tt></td><td>No</td><td>Nitro+</td><td>
+<tr><td>*.pak</td><td><tt>\002\000\000\000</tt><br/><tt>\003\000\000\000</tt></td><td>No</td><td>Nitro+<br/>CoreMoreco</td><td>
 Hanachirasu<br/>
 Jingai Makyou<br/>
+Chibi Mama<br/>
 </td></tr>
 <tr class="odd"><td>*.nsa<br/>*.sar</td><td>-</td><td>Yes<a href="#note-1" class="footnote">1</a></td><td>NScripter</td><td>
 Binary Pot<br/>
@@ -452,11 +453,13 @@ Gokudou no Hanayome<br/>
 Knight Carnival!<br/>
 Seal Princess<br/>
 </td></tr>
-<tr><td>*.sud</td><td>-</td><td>No</td><td rowspan="2">Triangle</td><td rowspan="2">
+<tr><td>*.sud</td><td>-</td><td>No</td><td rowspan="3">Triangle</td><td rowspan="3">
 Kourin Tenshi En Ciel Rena<br/>
 Mamagoto<br/>
+Vampire Crusaders<br/>
 </td></tr>
 <tr><td>*.iaf</td><td>-</td><td>No</td></tr>
+<tr><td>*.cgf</td><td>-</td><td>No</td></tr>
 <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">
@@ -612,6 +615,7 @@ AstralAir no Shiroki Towa<br/>
 <tr><td>*.hzc</td><td><tt>hzc1</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.bin</td><td><tt>ESC-ARC1</tt><br/><tt>ESC-ARC2</tt></td><td>No</td><td>Escu:de</td><td>
 Otome Renshin Prister<br/>
+Suisei Tenshi Primaveil Zwei<br/>
 Wondering Repair!<br/>
 </td></tr>
 <tr><td>*.pac</td><td>-</td><td>No</td><td>Tmr-Hiro ADV System</td><td>
@@ -637,6 +641,7 @@ Ayakashi H<br/>
 </td></tr>
 <tr class="odd"><td>*.arc</td><td><tt>LINK3</tt></td><td>No</td><td rowspan="3">KaGuYa</td><td rowspan="3">
 Dokidoki Onee-san<br/>
+Mahokoi ~Ecchi na Mahou de Koi x Koi Shichau~<br/>
 </td></tr>
 <tr class="odd"><td>*.alp</td><td><tt>AP-2</tt></td><td>No</td></tr>
 <tr class="odd"><td>*.anm</td><td><tt>AN00</tt></td><td>No</td></tr>