diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index 05426858..a9c56bdd 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -79,8 +79,14 @@
     <Compile Include="Cmvs\ArcPBZ.cs" />
     <Compile Include="Cmvs\AudioMV.cs" />
     <Compile Include="Cmvs\ImagePSB.cs" />
+    <Compile Include="Cyberworks\ArcDAT.cs" />
+    <Compile Include="Cyberworks\AudioTINK.cs" />
     <Compile Include="Bruns\AudioUM3.cs" />
     <Compile Include="Bruns\ImageEENC.cs" />
+    <Compile Include="Cyberworks\ImageTINK.cs" />
+    <Compile Include="Cyberworks\WidgetBELL.xaml.cs">
+      <DependentUpon>WidgetBELL.xaml</DependentUpon>
+    </Compile>
     <Compile Include="LiveMaker\ArcVF.cs" />
     <Compile Include="ArcZIP.cs" />
     <Compile Include="AudioVOC.cs" />
@@ -561,6 +567,10 @@
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="Cyberworks\WidgetBELL.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="DxLib\WidgetSCR.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
diff --git a/ArcFormats/Cyberworks/ArcDAT.cs b/ArcFormats/Cyberworks/ArcDAT.cs
new file mode 100644
index 00000000..7fed101c
--- /dev/null
+++ b/ArcFormats/Cyberworks/ArcDAT.cs
@@ -0,0 +1,303 @@
+//! \file       ArcDAT.cs
+//! \date       Thu Jun 16 13:48:04 2016
+//! \brief      Tinker Bell resource 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 System.Text;
+using System.Text.RegularExpressions;
+using GameRes.Compression;
+using GameRes.Formats.Properties;
+using GameRes.Formats.Strings;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Cyberworks
+{
+    internal class BellArchive : ArcFile
+    {
+        public readonly AImageScheme    Scheme;
+
+        public BellArchive (ArcView arc, ArchiveFormat impl, ICollection<Entry> dir, AImageScheme scheme)
+            : base (arc, impl, dir)
+        {
+            Scheme = scheme;
+        }
+    }
+
+    [Export(typeof(ArchiveFormat))]
+    public class DatOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ARC/Cyberworks"; } }
+        public override string Description { get { return "Cyberworks/TinkerBell resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public DatOpener ()
+        {
+            Extensions = new string[] { "dat", "04", "05", "06" };
+        }
+
+        static Regex s_arcname_re = new Regex (@"^.+0(?<id>(?<num>\d)(?<idx>[a-z])?)(?:|\..*)$", RegexOptions.IgnoreCase);
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            var arc_name = Path.GetFileName (file.Name);
+            var match = s_arcname_re.Match (arc_name);
+            if (!match.Success)
+                return null;
+            char num = match.Groups["num"].Value[0];
+            if (num < '4' || num > '6')
+                return null;
+            int arc_idx = 0;
+            if (match.Groups["idx"].Success)
+                arc_idx = char.ToUpper (match.Groups["idx"].Value[0]) - '@';
+
+            var toc_name_builder = new StringBuilder (arc_name);
+            var num_pos = match.Groups["id"].Index;
+            toc_name_builder.Remove (num_pos, match.Groups["id"].Length);
+            toc_name_builder.Insert (num_pos, num-'3');
+            var toc_name = toc_name_builder.ToString();
+
+            toc_name = VFS.CombinePath (VFS.GetDirectoryName (file.Name), toc_name);
+            byte[] toc;
+            using (var toc_view = VFS.OpenView (toc_name))
+            {
+                if (toc_view.MaxOffset <= 0x10)
+                    return null;
+                uint unpacked_size = DecodeDecimal (toc_view, 0);
+                if (unpacked_size <= 4 || unpacked_size > 0x1000000)
+                    return null;
+                uint packed_size = DecodeDecimal (toc_view, 8);
+                if (packed_size > toc_view.MaxOffset)
+                    return null;
+                toc = new byte[unpacked_size];
+                using (var toc_s = toc_view.CreateStream (0x10, packed_size))
+                using (var lzss = new LzssStream (toc_s))
+                {
+                    if (toc.Length != lzss.Read (toc, 0, toc.Length))
+                        return null;
+                }
+            }
+            int entry_size = LittleEndian.ToInt32 (toc, 0) + 4;
+            if (entry_size < 0x16)
+                return null;
+            int count = toc.Length / entry_size;
+            if (!IsSaneCount (count))
+                return null;
+            var type = new char[2];
+            var dir = new List<Entry> (count);
+            bool has_images = false;
+            using (var input = new MemoryStream (toc))
+            using (var index = new BinaryReader (input))
+            {
+                while (input.Position < input.Length)
+                {
+                    entry_size = index.ReadInt32();
+                    if (entry_size <= 0)
+                        return null;
+                    var next_pos = index.BaseStream.Position + entry_size;
+                    uint id = index.ReadUInt32();
+                    var entry = new PackedEntry { Name = id.ToString ("D6") };
+                    entry.UnpackedSize = index.ReadUInt32();
+                    entry.Size = index.ReadUInt32();
+                    entry.IsPacked = entry.UnpackedSize != entry.Size;
+                    entry.Offset = index.ReadUInt32();
+                    type[0] = (char)index.ReadByte();
+                    type[1] = (char)index.ReadByte();
+                    int entry_idx = 0;
+                    if (entry_size >= 0x17)
+                    {
+                        index.ReadInt32();
+                        entry_idx = index.ReadByte();
+                    }
+                    if (entry_idx == arc_idx)
+                    {
+                        if (type[0] > 0x20 && type[0] < 0x7F)
+                        {
+                            string ext;
+                            if (type[1] > 0x20 && type[1] < 0x7F)
+                                ext = new string (type);
+                            else
+                                ext = new string (type[0], 1);
+                            if ("b0" == ext || "n0" == ext || "o0" == ext)
+                            {
+                                entry.Type = "image";
+                                has_images = true;
+                            }
+                            else if ("j0" == ext || "k0" == ext || "u0" == ext)
+                                entry.Type = "audio";
+                            entry.Name = Path.ChangeExtension (entry.Name, ext);
+                        }
+                        dir.Add (entry);
+                    }
+                    index.BaseStream.Position = next_pos;
+                }
+            }
+            if (0 == dir.Count)
+                return null;
+            if (!has_images)
+                return new ArcFile (file, this, dir);
+            var options = Query<BellOptions> (arcStrings.ArcEncryptedNotice);
+            return new BellArchive (file, this, dir, options.Scheme);
+        }
+
+        public override Stream OpenEntry (ArcFile arc, Entry entry)
+        {
+            uint entry_size = entry.Size;
+            Stream input = arc.File.CreateStream (entry.Offset, entry_size);
+            var pent = entry as PackedEntry;
+            if (null != pent && pent.IsPacked)
+            {
+                input = new LzssStream (input);
+                entry_size = pent.UnpackedSize;
+            }
+            var barc = arc as BellArchive;
+            if (null == barc)
+                return input;
+            try
+            {
+                if ("image" == entry.Type && entry_size > 5)
+                    return DecryptImage (input, entry_size, barc.Scheme);
+                return input;
+            }
+            catch
+            {
+                input.Dispose();
+                throw;
+            }
+        }
+
+        Stream DecryptImage (Stream input, uint entry_size, AImageScheme scheme)
+        {
+            byte[] header = null;
+            byte type = (byte)input.ReadByte();
+            if ('c' == type || 'b' == type)
+            {
+                header = new byte[5];
+                header[0] = type;
+                input.Read (header, 1, 4);
+                uint img_size = BigEndian.ToUInt32 (header, 1);
+                if (entry_size - 5 == img_size)
+                {
+                    if (input.CanSeek)
+                        input = new StreamRegion (input, 5, img_size);
+                    return input;
+                }
+            }
+            else if (scheme != null && 'a' == type && entry_size > 21)
+            {
+                int id = input.ReadByte();
+                if (id == scheme.Value2)
+                {
+                    using (var seekable = new SeekableStream (input))
+                    using (var reader = new AImageReader (seekable, scheme))
+                    {
+                        reader.Unpack();
+                        return TgaStream.Create (reader.Info, reader.Data, scheme.Flipped);
+                    }
+                }
+                header = new byte[2] { type, (byte)id };
+            }
+            if (input.CanSeek)
+            {
+                input.Position = 0;
+            }
+            else
+            {
+                if (null == header)
+                    header = new byte[1] { type };
+                input = new PrefixStream (header, input);
+            }
+            return input;
+        }
+
+        uint DecodeDecimal (ArcView file, long offset)
+        {
+            uint v = 0;
+            uint rank = 1;
+            for (int i = 7; i >= 0; --i, rank *= 10)
+            {
+                uint b = file.View.ReadByte (offset+i);
+                if (b != 0xFF)
+                    v += (b ^ 0x7F) * rank;
+            }
+            return v;
+        }
+
+        public override ResourceOptions GetDefaultOptions ()
+        {
+            return new BellOptions { Scheme = GetScheme (Settings.Default.BELLTitle) };
+        }
+
+        public override object GetAccessWidget ()
+        {
+            return new GUI.WidgetBELL();
+        }
+
+        public static AImageScheme GetScheme (string title)
+        {
+            AImageScheme scheme = null;
+            if (string.IsNullOrEmpty (title) || !KnownSchemes.TryGetValue (title, out scheme))
+                return null;
+            return scheme;
+        }
+
+        public static Dictionary<string, AImageScheme> KnownSchemes = new Dictionary<string, AImageScheme>();
+
+        public override ResourceScheme Scheme
+        {
+            get { return new SchemeMap { KnownSchemes = KnownSchemes }; }
+            set { KnownSchemes = ((SchemeMap)value).KnownSchemes; }
+        }
+    }
+
+    [Serializable]
+    public class AImageScheme
+    {
+        public byte     Value1;
+        public byte     Value2;
+        public byte     Value3;
+        public byte[]   HeaderOrder;
+        public bool     Flipped;
+
+        public AImageScheme ()
+        {
+            Flipped = true;
+        }
+    }
+
+    [Serializable]
+    public class SchemeMap : ResourceScheme
+    {
+        public Dictionary<string, AImageScheme> KnownSchemes;
+    }
+
+    public class BellOptions : ResourceOptions
+    {
+        public AImageScheme Scheme;
+    }
+}
diff --git a/ArcFormats/Cyberworks/AudioTINK.cs b/ArcFormats/Cyberworks/AudioTINK.cs
new file mode 100644
index 00000000..4eba887f
--- /dev/null
+++ b/ArcFormats/Cyberworks/AudioTINK.cs
@@ -0,0 +1,99 @@
+//! \file       AudioTINK.cs
+//! \date       Fri Jun 17 14:13:39 2016
+//! \brief      Cyberworks encrypted OGG audio.
+//
+// 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 System.Text;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Cyberworks
+{
+    [Serializable]
+    public class TinkAudioScheme : ResourceScheme
+    {
+        public Dictionary<uint, byte[]> KnownKeys;
+    }
+
+    [Export(typeof(AudioFormat))]
+    public class TinkAudio : AudioFormat
+    {
+        public override string         Tag { get { return "OGG/TINK"; } }
+        public override string Description { get { return "Cyberworks encrypted OGG audio"; } }
+        public override uint     Signature { get { return 0x6B6E6954; } }
+
+        public TinkAudio ()
+        {
+            Signatures = new uint[] { 0x6B6E6954, 0x676E6F53, 0 }; // 'Tink', 'Song'
+            Extensions = new string[] { "j0", "k0", "u0" };
+        }
+
+        static Dictionary<uint, byte[]> KnownKeys = new Dictionary<uint, byte[]>();
+
+        public override ResourceScheme Scheme
+        {
+            get { return new TinkAudioScheme { KnownKeys = KnownKeys }; }
+            set { KnownKeys = ((TinkAudioScheme)value).KnownKeys; }
+        }
+
+        public override SoundInput TryOpen (Stream file)
+        {
+            var header = new byte[Math.Min (0xE1F, file.Length)];
+            if (0x10 != file.Read (header, 0, 0x10))
+                return null;
+            var signature = LittleEndian.ToUInt32 (header, 0);
+            byte[] key;
+            if (!KnownKeys.TryGetValue (signature, out key))
+            {
+                signature = LittleEndian.ToUInt32 (header, 0xC);
+                if (!KnownKeys.TryGetValue (signature, out key))
+                    return null;
+                file.Read (header, 4, 0xC);
+            }
+            header[0] = (byte)'O';
+            header[1] = (byte)'g';
+            header[2] = (byte)'g';
+            header[3] = (byte)'S';
+            file.Read (header, 0x10, header.Length-0x10);
+            int k = 0;
+            for (int i = 4; i < header.Length; ++i)
+            {
+                header[i] ^= key[k++];
+                if (k >= key.Length)
+                    k = 1;
+            }
+            Stream input;
+            if (header.Length >= file.Length)
+                input = new MemoryStream (header);
+            else
+                input = new PrefixStream (header, new StreamRegion (file, file.Position));
+            var sound = OggAudio.Instance.TryOpen (input);
+            if (sound != null && header.Length >= file.Length)
+                file.Dispose();
+            return sound;
+        }
+    }
+}
diff --git a/ArcFormats/Cyberworks/ImageTINK.cs b/ArcFormats/Cyberworks/ImageTINK.cs
new file mode 100644
index 00000000..10115cda
--- /dev/null
+++ b/ArcFormats/Cyberworks/ImageTINK.cs
@@ -0,0 +1,265 @@
+//! \file       ImageTINK.cs
+//! \date       Fri Jun 17 18:49:04 2016
+//! \brief      Tinker Bell encrypted image file.
+//
+// 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.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Cyberworks
+{
+    public enum AImageHeader
+    {
+        Flags           = 0,
+        Field1          = 1,
+        Field2          = 2,
+        Height          = 3,
+        Width           = 4,
+        UnpackedSize    = 5,
+        AlphaSize       = 6,
+        BitsSize        = 7,
+    }
+
+    internal sealed class AImageReader : IDisposable
+    {
+        public readonly ImageMetaData Info = new ImageMetaData();
+
+        BinaryReader    m_input;
+        byte[]          m_output;
+        AImageScheme    m_scheme;
+
+        public byte[] Data { get { return m_output; } }
+
+        public AImageReader (Stream input, AImageScheme scheme)
+        {
+            m_input = new ArcView.Reader (input);
+            m_scheme = scheme;
+        }
+
+        public void Unpack ()
+        {
+            var header = new int[m_scheme.HeaderOrder.Length];
+            for (int i = 0; i < m_scheme.HeaderOrder.Length; ++i)
+            {
+                int b = GetInt();
+                header[m_scheme.HeaderOrder[i]] = b;
+            }
+            Info.Width  = (uint)header[4];
+            Info.Height = (uint)header[3];
+            if (0 == Info.Width || Info.Width >= 0x8000 || 0 == Info.Height || Info.Height >= 0x8000)
+                throw new InvalidFormatException();
+            int unpacked_size = header[5];
+            if (unpacked_size <= 0)
+                throw new InvalidFormatException();
+            int flags     = header[0];
+            int bits_size = header[7];
+            int data_offset = bits_size * 2;
+            if (0 == flags)
+                CopyV0 (unpacked_size);
+            else if (2 == (flags & 6))
+                UnpackV2 (bits_size, data_offset);
+            else if (6 == (flags & 6))
+            {
+                if (0 == bits_size)
+                    CopyV6 (unpacked_size, header[6]);
+                else
+                    UnpackV6 (bits_size, data_offset, data_offset + header[6]);
+            }
+            else
+                throw new InvalidFormatException();
+        }
+
+        void CopyV0 (int data_size)
+        {
+            int plane_size = (int)Info.Width * (int)Info.Height;
+            if (plane_size == data_size)
+            {
+                Info.BPP = 8;
+                m_output = m_input.ReadBytes (data_size);
+            }
+            else if (3 * plane_size == data_size)
+            {
+                Info.BPP = 24;
+                m_output = m_input.ReadBytes (data_size);
+            }
+            else if (4 * plane_size == data_size)
+            {
+                Info.BPP = 32;
+                m_output = m_input.ReadBytes (data_size);
+            }
+            else
+            {
+                Info.BPP = 24;
+                int dst_stride = (int)Info.Width * 3;
+                int src_stride = (dst_stride + 3) & ~3;
+                if (src_stride * (int)Info.Height != data_size)
+                    throw new InvalidFormatException();
+                m_output = new byte[dst_stride * (int)Info.Height];
+                int dst = 0;
+                for (uint y = 0; y < Info.Height; ++y)
+                {
+                    m_input.Read (m_output, dst, dst_stride);
+                    dst += dst_stride;
+                    m_input.BaseStream.Seek (src_stride-dst_stride, SeekOrigin.Current);
+                }
+            }
+        }
+
+        void UnpackV2 (int offset1, int rgb_offset)
+        {
+            Info.BPP = 24;
+            var rgb_map = m_input.ReadBytes (offset1);
+            var alpha_map = m_input.ReadBytes (rgb_offset-offset1);
+            int plane_size = (int)Info.Width * (int)Info.Height;
+            m_output = new byte[plane_size * 3];
+
+            int bit = 1;
+            int bit_src = 0;
+            int dst = 0;
+            for (int i = 0; i < plane_size; ++i)
+            {
+                if ((bit & alpha_map[bit_src]) == 0 && (bit & rgb_map[bit_src]) != 0)
+                {
+                    m_input.Read (m_output, dst, 3);
+                }
+                dst += 3;
+                if (0x80 == bit)
+                {
+                    ++bit_src;
+                    bit = 1;
+                }
+                else
+                    bit <<= 1;
+            }
+        }
+
+        void CopyV6 (int alpha_size, int rgb_size)
+        {
+            Info.BPP = 32;
+            int plane_size = (int)Info.Width * (int)Info.Height;
+            m_output = new byte[plane_size * 4];
+            int stride = ((int)Info.Width * 3 + 3) & ~3;
+            var line = new byte[stride];
+            int dst = 3;
+            for (uint y = 0; y < Info.Height; ++y)
+            {
+                m_input.Read (line, 0, stride);
+                int src = 0;
+                for (uint x = 0; x < Info.Width; ++x)
+                {
+                    m_output[dst] = line[src];
+                    dst += 4;
+                    src += 3;
+                }
+            }
+            dst = 0;
+            for (uint y = 0; y < Info.Height; ++y)
+            {
+                m_input.Read (line, 0, stride);
+                int src = 0;
+                for (uint x = 0; x < Info.Width; ++x)
+                {
+                    m_output[dst  ] = line[src++];
+                    m_output[dst+1] = line[src++];
+                    m_output[dst+2] = line[src++];
+                    dst += 4;
+                }
+            }
+        }
+
+        void UnpackV6 (int offset1, int alpha_offset, int rgb_offset)
+        {
+            Info.BPP = 32;
+            var rgb_map = m_input.ReadBytes (offset1);
+            var alpha_map = m_input.ReadBytes (alpha_offset - offset1);
+            var alpha = m_input.ReadBytes (rgb_offset - alpha_offset);
+            int plane_size = (int)Info.Width * (int)Info.Height;
+            m_output = new byte[plane_size * 4];
+
+            int bit = 1;
+            int bit_src = 0;
+            int alpha_src = 0;
+            int dst = 0;
+            for (int i = 0; i < plane_size; ++i)
+            {
+                bool has_alpha = (bit & alpha_map[bit_src]) != 0;
+                if (has_alpha || (bit & rgb_map[bit_src]) != 0)
+                {
+                    m_input.Read (m_output, dst, 3);
+                    if (has_alpha)
+                    {
+                        m_output[dst+3] = alpha[alpha_src];
+                        alpha_src += 3;
+                    }
+                    else
+                        m_output[dst+3] = 0xFF;
+                }
+                dst += 4;
+                if (0x80 == bit)
+                {
+                    ++bit_src;
+                    bit = 1;
+                }
+                else
+                    bit <<= 1;
+            }
+        }
+
+        int GetInt ()
+        {
+            byte a = m_input.ReadByte();
+            if (a == m_scheme.Value3)
+                a = 0;
+            int d = 0;
+            int c = 0;
+            for (;;)
+            {
+                byte a1 = m_input.ReadByte();
+                if (a1 == m_scheme.Value2)
+                    break;
+                if (a1 != m_scheme.Value1)
+                {
+                    c = (a1 == m_scheme.Value3) ? 0 : a1;
+                }
+                else
+                {
+                    ++d;
+                }
+            }
+            return a + (c + d * m_scheme.Value1) * m_scheme.Value1;
+        }
+
+        #region IDisposable Members
+        bool _disposed = false;
+        public void Dispose ()
+        {
+            if (!_disposed)
+            {
+                m_input.Dispose();
+                _disposed = true;
+            }
+        }
+        #endregion
+    }
+}
diff --git a/ArcFormats/Cyberworks/WidgetBELL.xaml b/ArcFormats/Cyberworks/WidgetBELL.xaml
new file mode 100644
index 00000000..b3cc313f
--- /dev/null
+++ b/ArcFormats/Cyberworks/WidgetBELL.xaml
@@ -0,0 +1,7 @@
+<StackPanel x:Class="GameRes.Formats.GUI.WidgetBELL"
+      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      xmlns:p="clr-namespace:GameRes.Formats.Properties">
+    <ComboBox Name="Title" Width="250" ItemsSource="{Binding}"
+              SelectedValue="{Binding Source={x:Static p:Settings.Default}, Path=BELLTitle, Mode=TwoWay}"/>
+</StackPanel>
diff --git a/ArcFormats/Cyberworks/WidgetBELL.xaml.cs b/ArcFormats/Cyberworks/WidgetBELL.xaml.cs
new file mode 100644
index 00000000..35ef3f1f
--- /dev/null
+++ b/ArcFormats/Cyberworks/WidgetBELL.xaml.cs
@@ -0,0 +1,22 @@
+using System.Linq;
+using System.Windows.Controls;
+using GameRes.Formats.Cyberworks;
+using GameRes.Formats.Strings;
+
+namespace GameRes.Formats.GUI
+{
+    /// <summary>
+    /// Interaction logic for WidgetBELL.xaml
+    /// </summary>
+    public partial class WidgetBELL : StackPanel
+    {
+        public WidgetBELL()
+        {
+            InitializeComponent();
+            var keys = new string[] { arcStrings.ArcIgnoreEncryption };
+            Title.ItemsSource = keys.Concat (DatOpener.KnownSchemes.Keys.OrderBy (x => x));
+            if (-1 == Title.SelectedIndex)
+                Title.SelectedIndex = 0;
+        }
+    }
+}
diff --git a/ArcFormats/Properties/Settings.Designer.cs b/ArcFormats/Properties/Settings.Designer.cs
index b4075d35..b820742d 100644
--- a/ArcFormats/Properties/Settings.Designer.cs
+++ b/ArcFormats/Properties/Settings.Designer.cs
@@ -573,5 +573,17 @@ namespace GameRes.Formats.Properties {
                 this["MGPKTitle"] = value;
             }
         }
+        
+        [global::System.Configuration.UserScopedSettingAttribute()]
+        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+        [global::System.Configuration.DefaultSettingValueAttribute("")]
+        public string BELLTitle {
+            get {
+                return ((string)(this["BELLTitle"]));
+            }
+            set {
+                this["BELLTitle"] = value;
+            }
+        }
     }
 }
diff --git a/ArcFormats/Properties/Settings.settings b/ArcFormats/Properties/Settings.settings
index 26898952..16dc5afc 100644
--- a/ArcFormats/Properties/Settings.settings
+++ b/ArcFormats/Properties/Settings.settings
@@ -140,5 +140,8 @@
     <Setting Name="MGPKTitle" Type="System.String" Scope="User">
       <Value Profile="(Default)" />
     </Setting>
+    <Setting Name="BELLTitle" Type="System.String" Scope="User">
+      <Value Profile="(Default)" />
+    </Setting>
   </Settings>
 </SettingsFile>
\ No newline at end of file
diff --git a/ArcFormats/app.config b/ArcFormats/app.config
index 24f0e518..fe5f6783 100644
--- a/ArcFormats/app.config
+++ b/ArcFormats/app.config
@@ -142,6 +142,9 @@
             <setting name="MGPKTitle" serializeAs="String">
                 <value />
             </setting>
+            <setting name="BELLTitle" serializeAs="String">
+                <value />
+            </setting>
         </GameRes.Formats.Properties.Settings>
     </userSettings>
 <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/></startup></configuration>
diff --git a/supported.html b/supported.html
index 9603273d..a705bd52 100644
--- a/supported.html
+++ b/supported.html
@@ -556,6 +556,7 @@ Sora no Iro, Mizu no Iro<br/>
 Thunder Claps!<br/>
 Tokumei Kyoushi Hitomi<br/>
 Toshiue Lesson ~Mama to Oba-san to Sensei to~<br/>
+Tutorial Summer<br/>
 </td></tr>
 <tr><td>*.iks</td><td><tt>NPSR</tt></td><td>No</td><td>X[iks]</td><td>Shikkan ~Hazukashimerareta Karada, Oreta Kokoro~</td></tr>
 <tr class="odd"><td>*.wbp</td><td><tt>ARCFORM3 WBUG</tt></td><td>No</td><td rowspan="4">Wild Bug</td><td rowspan="4">
@@ -932,6 +933,12 @@ Natsunone -Ring-<br/>
 Cartagra<br/>
 Kara no Shoujo 2<br/>
 </td></td>
+<tr><td>data.NN<br/>ArcNN.dat</td><td>-</td><td>No</td><td>TinkerBell</td><td>
+Hime Kami 1/2<br/>
+Oshioki ~Gakuen Reijou Kousei Keikaku~<br/>
+Ore Maou! ~Kudake Chitta Tamashii<br/>
+Zoku Etsuraku no Tane<br/>
+</td></tr>
 </table>
 <p><a name="note-1" class="footnote">1</a> Non-encrypted only</p>
 </body>