diff --git a/AxibugEmuOnline.Client/Assets/Script/AppMain/Manager/AppSettings/KeyMapperSetting/EssgeeKeyBinding.cs b/AxibugEmuOnline.Client/Assets/Script/AppMain/Manager/AppSettings/KeyMapperSetting/EssgeeKeyBinding.cs
index 8e859bd7..ba3ee6da 100644
--- a/AxibugEmuOnline.Client/Assets/Script/AppMain/Manager/AppSettings/KeyMapperSetting/EssgeeKeyBinding.cs
+++ b/AxibugEmuOnline.Client/Assets/Script/AppMain/Manager/AppSettings/KeyMapperSetting/EssgeeKeyBinding.cs
@@ -152,41 +152,41 @@ namespace AxibugEmuOnline.Client.Settings
     public class MasterSystemKeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.MasterSystem;
-        public override int ControllerCount => 2;
+        public override int ControllerCount => 4;
     }
 
     public class SG1000KeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.Sg1000;
-        public override int ControllerCount => 2;
+        public override int ControllerCount => 4;
     }
 
     public class ColecoVisionKeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.ColecoVision;
-        public override int ControllerCount => 2;
+        public override int ControllerCount => 4;
     }
 
     public class GameBoyColorKeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.GameBoyColor;
-        public override int ControllerCount => 1;
+        public override int ControllerCount => 4;
     }
     public class GameBoyKeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.GameBoy;
-        public override int ControllerCount => 1;
+        public override int ControllerCount => 4;
     }
 
     public class GameGearKeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.GameGear;
-        public override int ControllerCount => 2;
+        public override int ControllerCount => 4;
     }
 
     public class SC3000KeyBinding : EssgeeKeyBinding
     {
         public override RomPlatformType Platform => RomPlatformType.Sc3000;
-        public override int ControllerCount => 2;
+        public override int ControllerCount => 4;
     }
 }
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