diff --git a/extensions/MarkSkecher/input-detection.js b/extensions/MarkSkecher/input-detection.js
new file mode 100644
index 0000000000..4f5b3fd762
--- /dev/null
+++ b/extensions/MarkSkecher/input-detection.js
@@ -0,0 +1,555 @@
+// Name: Advanced Input
+// ID: markskecherinput
+// Description: 高级输入检测扩展，支持鼠标滚轮、鼠标按键、键盘组合键和输入事件检测。
+// By: MarkSkecher
+// License: MIT
+
+(function (Scratch) {
+  "use strict";
+
+  const icon =
+    "data:image/svg+xml;base64,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";
+
+  const formatMessage = Scratch.formatMessage;
+
+  class AdvancedInput {
+    constructor() {
+      this.wheelDelta = 0;
+      this.wheelDirection = "";
+      this.mouseButtons = { left: false, middle: false, right: false };
+      this.keysPressed = new Set();
+      this.lastKeyPressed = "";
+      this.keyPressCount = 0;
+      this.mouseX = 0;
+      this.mouseY = 0;
+      this.clickCount = 0;
+      this.doubleClickDetected = false;
+      this.lastMessage = "";
+
+      document.addEventListener("wheel", (e) => {
+        this.wheelDelta = e.deltaY;
+        this.wheelDirection = e.deltaY > 0 ? "down" : "up";
+        setTimeout(() => {
+          this.wheelDelta = 0;
+          this.wheelDirection = "";
+        }, 100);
+      });
+
+      document.addEventListener("mousedown", (e) => {
+        if (e.button === 0) this.mouseButtons.left = true;
+        if (e.button === 1) this.mouseButtons.middle = true;
+        if (e.button === 2) this.mouseButtons.right = true;
+        this.clickCount++;
+      });
+
+      document.addEventListener("mouseup", (e) => {
+        if (e.button === 0) this.mouseButtons.left = false;
+        if (e.button === 1) this.mouseButtons.middle = false;
+        if (e.button === 2) this.mouseButtons.right = false;
+      });
+
+      document.addEventListener("dblclick", () => {
+        this.doubleClickDetected = true;
+        setTimeout(() => {
+          this.doubleClickDetected = false;
+        }, 100);
+      });
+
+      document.addEventListener("mousemove", (e) => {
+        this.mouseX = e.clientX;
+        this.mouseY = e.clientY;
+      });
+
+      document.addEventListener("keydown", (e) => {
+        this.keysPressed.add(e.key.toLowerCase());
+        this.lastKeyPressed = e.key;
+        this.keyPressCount++;
+      });
+
+      document.addEventListener("keyup", (e) => {
+        this.keysPressed.delete(e.key.toLowerCase());
+      });
+
+      document.addEventListener("message", (e) => {
+        if (
+          e.source === window &&
+          e.data.type === "SCRATCH_EXTENSION_MESSAGE"
+        ) {
+          this.lastMessage = e.data.message;
+        }
+      });
+    }
+
+    getInfo() {
+      return {
+        id: "markskecherinput",
+        name: formatMessage({
+          id: "markskecherinput.name",
+          default: "高级输入检测",
+          description: "Name of the Advanced Input Detection extension",
+        }),
+        blockIconURI: icon,
+        color1: "#4C97FF",
+        color2: "#3373CC",
+        blocks: [
+          {
+            opcode: "mouseWheelTurned",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.mouseWheelTurned",
+              default: "鼠标滚轮 [DIRECTION] 转？",
+              description: "Check if mouse wheel turned in direction",
+            }),
+            arguments: {
+              DIRECTION: {
+                type: Scratch.ArgumentType.STRING,
+                menu: "wheelDirection",
+                defaultValue: "向上",
+              },
+            },
+          },
+          {
+            opcode: "getWheelDelta",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getWheelDelta",
+              default: "鼠标滚轮滚动量",
+              description: "Get mouse wheel scroll amount",
+            }),
+          },
+          {
+            opcode: "mouseButtonPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.mouseButtonPressed",
+              default: "按下鼠标 [BUTTON] 键？",
+              description: "Check if mouse button is pressed",
+            }),
+            arguments: {
+              BUTTON: {
+                type: Scratch.ArgumentType.STRING,
+                menu: "mouseButton",
+                defaultValue: "左",
+              },
+            },
+          },
+          {
+            opcode: "doubleClicked",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.doubleClicked",
+              default: "双击鼠标？",
+              description: "Check if mouse was double clicked",
+            }),
+          },
+          {
+            opcode: "getClickCount",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getClickCount",
+              default: "鼠标点击次数",
+              description: "Get mouse click count",
+            }),
+          },
+          {
+            opcode: "resetClickCount",
+            blockType: Scratch.BlockType.COMMAND,
+            text: formatMessage({
+              id: "markskecherinput.resetClickCount",
+              default: "重置点击次数",
+              description: "Reset click count",
+            }),
+          },
+          {
+            opcode: "getMouseX",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getMouseX",
+              default: "鼠标X坐标",
+              description: "Get mouse X coordinate",
+            }),
+          },
+          {
+            opcode: "getMouseY",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getMouseY",
+              default: "鼠标Y坐标",
+              description: "Get mouse Y coordinate",
+            }),
+          },
+          {
+            opcode: "keyPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.keyPressed",
+              default: "按下 [KEY] 键？",
+              description: "Check if key is pressed",
+            }),
+            arguments: {
+              KEY: {
+                type: Scratch.ArgumentType.STRING,
+                menu: "keyNames",
+                defaultValue: "空格键",
+              },
+            },
+          },
+          {
+            opcode: "keyComboPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.keyComboPressed",
+              default: "按下组合键 [KEY1] + [KEY2]？",
+              description: "Check if key combination is pressed",
+            }),
+            arguments: {
+              KEY1: {
+                type: Scratch.ArgumentType.STRING,
+                menu: "modifierKeys",
+                defaultValue: "Ctrl",
+              },
+              KEY2: {
+                type: Scratch.ArgumentType.STRING,
+                menu: "keyNames",
+                defaultValue: "C",
+              },
+            },
+          },
+          {
+            opcode: "anyKeyPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.anyKeyPressed",
+              default: "按下任意键？",
+              description: "Check if any key is pressed",
+            }),
+          },
+          {
+            opcode: "keyCount",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.keyCount",
+              default: "当前按下的键数量",
+              description: "Get number of keys currently pressed",
+            }),
+          },
+          {
+            opcode: "getLastKey",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getLastKey",
+              default: "最后按下的键",
+              description: "Get last key pressed",
+            }),
+          },
+          {
+            opcode: "getKeyPressCount",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getKeyPressCount",
+              default: "按键总次数",
+              description: "Get total key press count",
+            }),
+          },
+          {
+            opcode: "resetKeyPressCount",
+            blockType: Scratch.BlockType.COMMAND,
+            text: formatMessage({
+              id: "markskecherinput.resetKeyPressCount",
+              default: "重置按键次数",
+              description: "Reset key press count",
+            }),
+          },
+          {
+            opcode: "isModifierPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.isModifierPressed",
+              default: "按下修饰键 [MODIFIER]？",
+              description: "Check if modifier key is pressed",
+            }),
+            arguments: {
+              MODIFIER: {
+                type: Scratch.ArgumentType.STRING,
+                menu: "modifierKeys",
+                defaultValue: "Shift",
+              },
+            },
+          },
+          {
+            opcode: "isArrowKeyPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.isArrowKeyPressed",
+              default: "按下方向键？",
+              description: "Check if arrow key is pressed",
+            }),
+          },
+          {
+            opcode: "isNumberKeyPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.isNumberKeyPressed",
+              default: "按下数字键？",
+              description: "Check if number key is pressed",
+            }),
+          },
+          {
+            opcode: "isLetterKeyPressed",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.isLetterKeyPressed",
+              default: "按下字母键？",
+              description: "Check if letter key is pressed",
+            }),
+          },
+          {
+            opcode: "receivedMessage",
+            blockType: Scratch.BlockType.BOOLEAN,
+            text: formatMessage({
+              id: "markskecherinput.receivedMessage",
+              default: "收到消息 [MESSAGE]？",
+              description: "Check if message was received",
+            }),
+            arguments: {
+              MESSAGE: {
+                type: Scratch.ArgumentType.STRING,
+                defaultValue: "消息1",
+              },
+            },
+          },
+          {
+            opcode: "getLastMessage",
+            blockType: Scratch.BlockType.REPORTER,
+            text: formatMessage({
+              id: "markskecherinput.getLastMessage",
+              default: "最后收到的消息",
+              description: "Get last received message",
+            }),
+          },
+          {
+            opcode: "clearLastMessage",
+            blockType: Scratch.BlockType.COMMAND,
+            text: formatMessage({
+              id: "markskecherinput.clearLastMessage",
+              default: "清除最后消息",
+              description: "Clear last message",
+            }),
+          },
+        ],
+        menus: {
+          wheelDirection: {
+            acceptReporters: true,
+            items: ["向上", "向下"],
+          },
+          mouseButton: {
+            acceptReporters: true,
+            items: ["左", "中", "右"],
+          },
+          keyNames: {
+            acceptReporters: true,
+            items: [
+              "空格键",
+              "回车键",
+              "退格键",
+              "删除键",
+              "制表键",
+              "逃逸键",
+              "上箭头",
+              "下箭头",
+              "左箭头",
+              "右箭头",
+              "A",
+              "B",
+              "C",
+              "D",
+              "E",
+              "F",
+              "G",
+              "H",
+              "I",
+              "J",
+              "K",
+              "L",
+              "M",
+              "N",
+              "O",
+              "P",
+              "Q",
+              "R",
+              "S",
+              "T",
+              "U",
+              "V",
+              "W",
+              "X",
+              "Y",
+              "Z",
+              "0",
+              "1",
+              "2",
+              "3",
+              "4",
+              "5",
+              "6",
+              "7",
+              "8",
+              "9",
+              "F1",
+              "F2",
+              "F3",
+              "F4",
+              "F5",
+              "F6",
+              "F7",
+              "F8",
+              "F9",
+              "F10",
+              "F11",
+              "F12",
+            ],
+          },
+          modifierKeys: {
+            acceptReporters: true,
+            items: ["Shift", "Ctrl", "Alt", "Meta"],
+          },
+        },
+      };
+    }
+
+    mouseWheelTurned(args) {
+      return (
+        this.wheelDirection === (args.DIRECTION === "向上" ? "up" : "down")
+      );
+    }
+
+    getWheelDelta() {
+      return this.wheelDelta;
+    }
+
+    mouseButtonPressed(args) {
+      const buttonMap = { 左: "left", 中: "middle", 右: "right" };
+      return this.mouseButtons[buttonMap[args.BUTTON]] || false;
+    }
+
+    doubleClicked() {
+      return this.doubleClickDetected;
+    }
+
+    getClickCount() {
+      return this.clickCount;
+    }
+
+    resetClickCount() {
+      this.clickCount = 0;
+    }
+
+    getMouseX() {
+      return this.mouseX;
+    }
+
+    getMouseY() {
+      return this.mouseY;
+    }
+
+    keyPressed(args) {
+      const keyMap = {
+        空格键: " ",
+        回车键: "enter",
+        退格键: "backspace",
+        删除键: "delete",
+        制表键: "tab",
+        逃逸键: "escape",
+        上箭头: "arrowup",
+        下箭头: "arrowdown",
+        左箭头: "arrowleft",
+        右箭头: "arrowright",
+      };
+
+      const key = keyMap[args.KEY] || args.KEY.toLowerCase();
+      return this.keysPressed.has(key);
+    }
+
+    keyComboPressed(args) {
+      const modifierMap = {
+        Shift: "shift",
+        Ctrl: "control",
+        Alt: "alt",
+        Meta: "meta",
+      };
+
+      const modifier = modifierMap[args.KEY1];
+      const key = args.KEY2.toLowerCase();
+
+      return this.keysPressed.has(modifier) && this.keysPressed.has(key);
+    }
+
+    anyKeyPressed() {
+      return this.keysPressed.size > 0;
+    }
+
+    keyCount() {
+      return this.keysPressed.size;
+    }
+
+    getLastKey() {
+      return this.lastKeyPressed;
+    }
+
+    getKeyPressCount() {
+      return this.keyPressCount;
+    }
+
+    resetKeyPressCount() {
+      this.keyPressCount = 0;
+    }
+
+    isModifierPressed(args) {
+      const modifierMap = {
+        Shift: "shift",
+        Ctrl: "control",
+        Alt: "alt",
+        Meta: "meta",
+      };
+
+      return this.keysPressed.has(modifierMap[args.MODIFIER]);
+    }
+
+    isArrowKeyPressed() {
+      return (
+        this.keysPressed.has("arrowup") ||
+        this.keysPressed.has("arrowdown") ||
+        this.keysPressed.has("arrowleft") ||
+        this.keysPressed.has("arrowright")
+      );
+    }
+
+    isNumberKeyPressed() {
+      for (let i = 0; i <= 9; i++) {
+        if (this.keysPressed.has(i.toString())) return true;
+      }
+      return false;
+    }
+
+    isLetterKeyPressed() {
+      for (let i = 97; i <= 122; i++) {
+        if (this.keysPressed.has(String.fromCharCode(i))) return true;
+      }
+      return false;
+    }
+
+    receivedMessage(args) {
+      return this.lastMessage === args.MESSAGE;
+    }
+
+    getLastMessage() {
+      return this.lastMessage;
+    }
+
+    clearLastMessage() {
+      this.lastMessage = "";
+    }
+  }
+
+  Scratch.extensions.register(new AdvancedInput());
+})(Scratch);
diff --git a/extensions/extensions.json b/extensions/extensions.json
index 442f300d59..8b3e417e1e 100644
--- a/extensions/extensions.json
+++ b/extensions/extensions.json
@@ -1,103 +1,104 @@
-[
-  // This file supports comments
-  "lab/text",
-  "lab/face-sensing",
-  "stretch",
-  "gamepad",
-  "box2d",
-  "files",
-  "pointerlock",
-  "cursor",
-  "runtime-options",
-  "fetch",
-  "text",
-  "local-storage",
-  "true-fantom/base",
-  "bitwise",
-  "Skyhigh173/bigint",
-  "utilities",
-  "sound",
-  "Lily/Video",
-  "iframe",
-  "Clay/htmlEncode",
-  "Xeltalliv/clippingblending",
-  "clipboard",
-  "obviousAlexC/penPlus",
-  "penplus",
-  "Xeltalliv/simple3D",
-  "Lily/Skins",
-  "obviousAlexC/SensingPlus",
-  "CubesterYT/KeySimulation",
-  "Lily/ClonesPlus",
-  "Lily/LooksPlus",
-  "Lily/MoreEvents",
-  "Lily/ListTools",
-  "veggiecan/mobilekeyboard",
-  "NexusKitten/moremotion",
-  "CubesterYT/WindowControls",
-  "veggiecan/browserfullscreen",
-  "shreder95ua/resolution",
-  "XmerOriginals/closecontrol",
-  "navigator",
-  "battery",
-  "PwLDev/vibration",
-  "TheShovel/CustomStyles",
-  "TheShovel/ColorPicker",
-  "NexusKitten/controlcontrols",
-  "mdwalters/notifications",
-  "XeroName/Deltatime",
-  "ar",
-  "encoding",
-  "Lily/SoundExpanded",
-  "Lily/TempVariables2",
-  "Lily/MoreTimers",
-  "clouddata-ping",
-  "cloudlink",
-  "true-fantom/network",
-  "true-fantom/math",
-  "true-fantom/regexp",
-  "true-fantom/couplers",
-  "DogeisCut/FormatNumbers",
-  "Lily/AllMenus",
-  "Lily/HackedBlocks",
-  "Lily/Cast",
-  "-SIPC-/time",
-  "-SIPC-/consoles",
-  "ZXMushroom63/searchApi",
-  "TheShovel/ShovelUtils",
-  "Lily/Assets",
-  "SharkPool/Font-Manager",
-  "DNin/wake-lock",
-  "Skyhigh173/json",
-  "mbw/xml",
-  "numerical-encoding-2",
-  "cs2627883/numericalencoding",
-  "SharkPool/Camera",
-  "DT/cameracontrols",
-  "TheShovel/CanvasEffects",
-  "Longboost/color_channels",
-  "CST1229/zip",
-  "CST1229/images",
-  "TheShovel/LZ-String",
-  "0832/rxFS2",
-  "NexusKitten/sgrab",
-  "NOname-awa/graphics2d",
-  "NOname-awa/more-comparisons",
-  "JeremyGamer13/tween",
-  "rixxyx",
-  "Lily/lmsutils",
-  "qxsck/data-analysis",
-  "qxsck/var-and-list",
-  "vercte/dictionaries",
-  "godslayerakp/http",
-  "godslayerakp/ws",
-  "Lily/CommentBlocks",
-  "veggiecan/LongmanDictionary",
-  "CubesterYT/TurboHook",
-  "Alestore/nfcwarp",
-  "steamworks",
-  "itchio",
-  "gamejolt",
-  "obviousAlexC/newgroundsIO",
-  "Lily/McUtils" // McUtils should always be the last item.
-]
+[
+  // This file supports comments
+  "lab/text",
+  "lab/face-sensing",
+  "stretch",
+  "gamepad",
+  "box2d",
+  "files",
+  "pointerlock",
+  "cursor",
+  "runtime-options",
+  "fetch",
+  "text",
+  "local-storage",
+  "true-fantom/base",
+  "bitwise",
+  "Skyhigh173/bigint",
+  "utilities",
+  "sound",
+  "Lily/Video",
+  "iframe",
+  "Clay/htmlEncode",
+  "Xeltalliv/clippingblending",
+  "clipboard",
+  "obviousAlexC/penPlus",
+  "penplus",
+  "Xeltalliv/simple3D",
+  "Lily/Skins",
+  "obviousAlexC/SensingPlus",
+  "CubesterYT/KeySimulation",
+  "Lily/ClonesPlus",
+  "Lily/LooksPlus",
+  "Lily/MoreEvents",
+  "Lily/ListTools",
+  "veggiecan/mobilekeyboard",
+  "NexusKitten/moremotion",
+  "CubesterYT/WindowControls",
+  "veggiecan/browserfullscreen",
+  "shreder95ua/resolution",
+  "XmerOriginals/closecontrol",
+  "navigator",
+  "battery",
+  "PwLDev/vibration",
+  "TheShovel/CustomStyles",
+  "TheShovel/ColorPicker",
+  "NexusKitten/controlcontrols",
+  "mdwalters/notifications",
+  "XeroName/Deltatime",
+  "ar",
+  "encoding",
+  "Lily/SoundExpanded",
+  "Lily/TempVariables2",
+  "Lily/MoreTimers",
+  "clouddata-ping",
+  "cloudlink",
+  "true-fantom/network",
+  "true-fantom/math",
+  "true-fantom/regexp",
+  "true-fantom/couplers",
+  "DogeisCut/FormatNumbers",
+  "Lily/AllMenus",
+  "Lily/HackedBlocks",
+  "Lily/Cast",
+  "-SIPC-/time",
+  "-SIPC-/consoles",
+  "ZXMushroom63/searchApi",
+  "TheShovel/ShovelUtils",
+  "Lily/Assets",
+  "SharkPool/Font-Manager",
+  "DNin/wake-lock",
+  "Skyhigh173/json",
+  "mbw/xml",
+  "numerical-encoding-2",
+  "cs2627883/numericalencoding",
+  "SharkPool/Camera",
+  "DT/cameracontrols",
+  "TheShovel/CanvasEffects",
+  "Longboost/color_channels",
+  "CST1229/zip",
+  "CST1229/images",
+  "TheShovel/LZ-String",
+  "0832/rxFS2",
+  "NexusKitten/sgrab",
+  "NOname-awa/graphics2d",
+  "NOname-awa/more-comparisons",
+  "JeremyGamer13/tween",
+  "rixxyx",
+  "Lily/lmsutils",
+  "qxsck/data-analysis",
+  "qxsck/var-and-list",
+  "vercte/dictionaries",
+  "godslayerakp/http",
+  "godslayerakp/ws",
+  "Lily/CommentBlocks",
+  "veggiecan/LongmanDictionary",
+  "CubesterYT/TurboHook",
+  "Alestore/nfcwarp",
+  "steamworks",
+  "itchio",
+  "gamejolt",
+  "obviousAlexC/newgroundsIO",
+  "MarkSkecher/input-detection",
+  "Lily/McUtils" // McUtils should always be the last item.
+]
diff --git a/images/MarkSkecher/input-detection.svg b/images/MarkSkecher/input-detection.svg
new file mode 100644
index 0000000000..df773e8c07
--- /dev/null
+++ b/images/MarkSkecher/input-detection.svg
@@ -0,0 +1,21 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
+  <!-- 背景 -->
+  <rect width="24" height="24" fill="#4C97FF" rx="2"/>
+  
+  <!-- 鼠标 -->
+  <rect x="8" y="4" width="8" height="12" rx="2" stroke="#FFFFFF" stroke-width="1" fill="none"/>
+  <rect x="10" y="6" width="4" height="2" rx="1" fill="#FFFFFF"/>
+  <circle cx="12" cy="10" r="1" fill="#FFFFFF"/>
+  <circle cx="12" cy="12" r="1" fill="#FFFFFF"/>
+  <circle cx="12" cy="14" r="1" fill="#FFFFFF"/>
+  
+  <!-- 键盘按键 -->
+  <rect x="2" y="18" width="3" height="3" rx="0.5" fill="#FFFFFF" stroke="#3373CC" stroke-width="0.5"/>
+  <rect x="6" y="18" width="3" height="3" rx="0.5" fill="#FFFFFF" stroke="#3373CC" stroke-width="0.5"/>
+  <rect x="10" y="18" width="3" height="3" rx="0.5" fill="#FFFFFF" stroke="#3373CC" stroke-width="0.5"/>
+  <rect x="14" y="18" width="3" height="3" rx="0.5" fill="#FFFFFF" stroke="#3373CC" stroke-width="0.5"/>
+  <rect x="18" y="18" width="3" height="3" rx="0.5" fill="#FFFFFF" stroke="#3373CC" stroke-width="0.5"/>
+  
+  <!-- 滚轮指示箭头 -->
+  <path d="M12 2 L14 4 L13 4 L13 6 L11 6 L11 4 L10 4 Z" fill="#FFFFFF"/>
+</svg>
\ No newline at end of file