diff --git a/BizHawk.MultiClient/RomGame.cs b/BizHawk.MultiClient/RomGame.cs
index 6f049c4236..f44e784fe0 100644
--- a/BizHawk.MultiClient/RomGame.cs
+++ b/BizHawk.MultiClient/RomGame.cs
@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 
 namespace BizHawk.MultiClient
 {
@@ -37,6 +38,7 @@ namespace BizHawk.MultiClient
                 name = info.Name;
                 System = info.System;
                 options = new List<string>(info.GetOptions());
+                CheckForPatchOptions();
             }
 
             if (patch != null)
@@ -74,6 +76,27 @@ namespace BizHawk.MultiClient
             return output;
         }
 
+        private void CheckForPatchOptions()
+        {
+            try
+            {
+                foreach (var opt in options)
+                {
+                    if (opt.StartsWith("PatchBytes"))
+                    {
+                        var split1 = opt.Split('=');
+                        foreach (var val in split1[1].Split(','))
+                        {
+                            var split3 = val.Split(':');
+                            int offset = int.Parse(split3[0], NumberStyles.HexNumber);
+                            byte value = byte.Parse(split3[1], NumberStyles.HexNumber);
+                            RomData[offset] = value;
+                        }
+                    }
+                }
+            } catch (Exception) { } // No need for errors in patching to propagate.
+        }
+
         public byte[] GetRomData() { return RomData; }
         public IList<string> GetOptions() { return options; }
         public string Name { get { return name; } }
diff --git a/BizHawk.MultiClient/output/gamedb.txt b/BizHawk.MultiClient/output/gamedb.txt
index 699b26ff15..3116fbc56b 100644
--- a/BizHawk.MultiClient/output/gamedb.txt
+++ b/BizHawk.MultiClient/output/gamedb.txt
@@ -1165,7 +1165,7 @@ EC7CF033	O	Wonder Boy (2x overdump)	SMS
 F374ECBA	F	Wonder Boy (2x overdump) (f)	SMS	F
 F1EE83CF	F	Wonder Boy (2x overdump) (h) [A]	SMS	
 9C7A70F5	F	Wonder Boy (2x overdump) (h) [B]	SMS	
-679E1676	 	Wonder Boy III - The Dragon's Trap	SMS		FM
+679E1676	 	Wonder Boy III - The Dragon's Trap	SMS		FM;PatchBytes=25B:00,25C:00
 C999F353	F	Wonder Boy III - The Dragon's Trap (f)	SMS	F	FM
 79EC738B	T	Wonder Boy III - The Dragon's Trap (FR)	SMS		FM
 42012B7D	T	Wonder Boy III - The Dragon's Trap (SE)	SMS	Metalhead?	FM