diff --git a/AxibugEmuOnline.Client/Assets/MyNes.Core/Il2CppSetOptionAttribute.cs b/AxibugEmuOnline.Client/Assets/MyNes.Core/Il2CppSetOptionAttribute.cs
new file mode 100644
index 00000000..e7453df2
--- /dev/null
+++ b/AxibugEmuOnline.Client/Assets/MyNes.Core/Il2CppSetOptionAttribute.cs
@@ -0,0 +1,74 @@
+using System;
+
+namespace Unity.IL2CPP.CompilerServices
+{
+    /// <summary>
+    /// The code generation options available for IL to C++ conversion.
+    /// Enable or disabled these with caution.
+    /// </summary>
+    public enum Option
+    {
+        /// <summary>
+        /// Enable or disable code generation for null checks.
+        ///
+        /// Global null check support is enabled by default when il2cpp.exe
+        /// is launched from the Unity editor.
+        ///
+        /// Disabling this will prevent NullReferenceException exceptions from
+        /// being thrown in generated code. In *most* cases, code that dereferences
+        /// a null pointer will crash then. Sometimes the point where the crash
+        /// happens is later than the location where the null reference check would
+        /// have been emitted though.
+        /// </summary>
+        NullChecks = 1,
+        /// <summary>
+        /// Enable or disable code generation for array bounds checks.
+        ///
+        /// Global array bounds check support is enabled by default when il2cpp.exe
+        /// is launched from the Unity editor.
+        ///
+        /// Disabling this will prevent IndexOutOfRangeException exceptions from
+        /// being thrown in generated code. This will allow reading and writing to
+        /// memory outside of the bounds of an array without any runtime checks.
+        /// Disable this check with extreme caution.
+        /// </summary>
+        ArrayBoundsChecks = 2,
+        /// <summary>
+        /// Enable or disable code generation for divide by zero checks.
+        ///
+        /// Global divide by zero check support is disabled by default when il2cpp.exe
+        /// is launched from the Unity editor.
+        ///
+        /// Enabling this will cause DivideByZeroException exceptions to be
+        /// thrown in generated code. Most code doesn't need to handle this
+        /// exception, so it is probably safe to leave it disabled.
+        /// </summary>
+        DivideByZeroChecks = 3,
+    }
+
+    /// <summary>
+    /// Use this attribute on an assembly, struct, class, method, or property to inform the IL2CPP code conversion utility to override the
+    /// global setting for one of a few different runtime checks.
+    ///
+    /// Example:
+    ///
+    ///     [Il2CppSetOption(Option.NullChecks, false)]
+    ///     public static string MethodWithNullChecksDisabled()
+    ///     {
+    ///         var tmp = new Object();
+    ///         return tmp.ToString();
+    ///     }
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Struct | AttributeTargets.Class | AttributeTargets.Method | AttributeTargets.Property | AttributeTargets.Delegate, Inherited = false, AllowMultiple = true)]
+    public class Il2CppSetOptionAttribute : Attribute
+    {
+        public Option Option { get; private set; }
+        public object Value { get; private set; }
+
+        public Il2CppSetOptionAttribute(Option option, object value)
+        {
+            Option = option;
+            Value = value;
+        }
+    }
+}
diff --git a/AxibugEmuOnline.Client/Assets/MyNes.Core/Il2CppSetOptionAttribute.cs.meta b/AxibugEmuOnline.Client/Assets/MyNes.Core/Il2CppSetOptionAttribute.cs.meta
new file mode 100644
index 00000000..956232b5
--- /dev/null
+++ b/AxibugEmuOnline.Client/Assets/MyNes.Core/Il2CppSetOptionAttribute.cs.meta
@@ -0,0 +1,11 @@
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