diff --git a/src/js/net/minecraft/client/GameSettings.js b/src/js/net/minecraft/client/GameSettings.js
new file mode 100644
index 0000000..9177078
--- /dev/null
+++ b/src/js/net/minecraft/client/GameSettings.js
@@ -0,0 +1,8 @@
+window.GameSettings = class {
+
+    constructor() {
+        this.crouching = 'ShiftLeft';
+        this.sprinting = 'ControlLeft';
+    }
+
+}
\ No newline at end of file
diff --git a/src/js/net/minecraft/client/GameWindow.js b/src/js/net/minecraft/client/GameWindow.js
index ae6d35c..635ddf7 100644
--- a/src/js/net/minecraft/client/GameWindow.js
+++ b/src/js/net/minecraft/client/GameWindow.js
@@ -79,16 +79,12 @@ window.GameWindow = class {
 
         // Keyboard interaction with screen
         window.addEventListener('keydown', function (event) {
+            event.preventDefault();
+
             if (!(minecraft.currentScreen === null)) {
                 // Handle key type on screen
-                let consumed = minecraft.currentScreen.keyTyped(event.code);
-
-                if (consumed) {
-                    // Cancel browser interaction
-                    event.preventDefault();
-                }
+                minecraft.currentScreen.keyTyped(event.code);
             } else if (event.code === 'Escape') {
-                event.preventDefault();
                 minecraft.displayScreen(new GuiIngameMenu());
             } else {
                 minecraft.onKeyPressed(event.code);
diff --git a/src/js/net/minecraft/client/Minecraft.js b/src/js/net/minecraft/client/Minecraft.js
index afdffa3..56bce8e 100644
--- a/src/js/net/minecraft/client/Minecraft.js
+++ b/src/js/net/minecraft/client/Minecraft.js
@@ -10,6 +10,8 @@ window.Minecraft = class {
         // Tick timer
         this.timer = new Timer(20);
 
+        this.settings = new GameSettings();
+
         // Create window and world renderer
         this.window = new GameWindow(this, canvasWrapperId);
 
@@ -125,6 +127,11 @@ window.Minecraft = class {
     }
 
     displayScreen(screen) {
+        if (typeof screen === "undefined") {
+            console.log("Tried to display an undefined screen");
+            return;
+        }
+
         // Switch screen
         this.currentScreen = screen;
 
diff --git a/src/js/net/minecraft/client/entity/Player.js b/src/js/net/minecraft/client/entity/Player.js
index 21c7b3d..fb24a15 100644
--- a/src/js/net/minecraft/client/entity/Player.js
+++ b/src/js/net/minecraft/client/entity/Player.js
@@ -311,9 +311,9 @@ window.Player = class {
         let sneaking = false;
 
         if (this.minecraft.hasInGameFocus()) {
-            if (Keyboard.isKeyDown("KeyR")) { // R
+            /*if (Keyboard.isKeyDown("KeyR")) { // R
                 this.respawn();
-            }
+            }*/
             if (Keyboard.isKeyDown("KeyW")) { // W
                 moveForward++;
             }
@@ -329,14 +329,14 @@ window.Player = class {
             if (Keyboard.isKeyDown("Space")) { // Space
                 jumping = true;
             }
-            if (Keyboard.isKeyDown("ShiftLeft")) { // Shift
+            if (Keyboard.isKeyDown(this.minecraft.settings.sprinting)) {
                 if (this.moveForward > 0 && !this.sneaking && !this.sprinting && this.motionX !== 0 && this.motionZ !== 0) {
                     this.sprinting = true;
 
                     this.updateFOVModifier();
                 }
             }
-            if (Keyboard.isKeyDown("KeyQ")) { // Q
+            if (Keyboard.isKeyDown(this.minecraft.settings.crouching)) { // Q
                 sneaking = true;
             }
 
diff --git a/src/js/net/minecraft/client/gui/GuiScreen.js b/src/js/net/minecraft/client/gui/GuiScreen.js
index 84e62a7..1aaaf4c 100644
--- a/src/js/net/minecraft/client/gui/GuiScreen.js
+++ b/src/js/net/minecraft/client/gui/GuiScreen.js
@@ -25,11 +25,18 @@ window.GuiScreen = class extends Gui {
         }
     }
 
-    keyTyped(code) {
-        if (code === "Escape") {
+    keyTyped(key) {
+        if (key === "Escape") {
             this.minecraft.displayScreen(null);
             return true;
         }
+
+        for (let i in this.buttonList) {
+            let button = this.buttonList[i];
+
+            button.keyTyped(key);
+        }
+
         return false;
     }
 
diff --git a/src/js/net/minecraft/client/gui/screens/GuiControls.js b/src/js/net/minecraft/client/gui/screens/GuiControls.js
new file mode 100644
index 0000000..4ae8b8b
--- /dev/null
+++ b/src/js/net/minecraft/client/gui/screens/GuiControls.js
@@ -0,0 +1,40 @@
+window.GuiControls = class extends GuiScreen {
+
+    constructor(previousScreen) {
+        super();
+
+        this.previousScreen = previousScreen;
+    }
+
+    init() {
+        super.init();
+
+        let settings = this.minecraft.settings;
+
+        let scope = this;
+        this.buttonList.push(new GuiKeyButton("Crouch", settings.crouching, this.width / 2 - 100, this.height / 2 - 20, 200, 20, function (key) {
+            settings.crouching = key;
+            scope.init();
+        }));
+
+        this.buttonList.push(new GuiKeyButton("Sprint", settings.sprinting, this.width / 2 - 100, this.height / 2 + 5, 200, 20, function (key) {
+            settings.sprinting = key;
+            scope.init();
+        }));
+
+        this.buttonList.push(new GuiButton("Done", this.width / 2 - 100, this.height / 2 + 70, 200, 20, function () {
+            scope.minecraft.displayScreen(scope.previousScreen);
+        }));
+    }
+
+    drawScreen(stack, mouseX, mouseY, partialTicks) {
+        // Background
+        this.drawRect(stack, 0, 0, this.width, this.height, 'black', 0.6);
+
+        // Title
+        this.drawCenteredString(stack, "Controls", this.width / 2, 50);
+
+        super.drawScreen(stack, mouseX, mouseY, partialTicks);
+    }
+
+}
\ No newline at end of file
diff --git a/src/js/net/minecraft/client/gui/screens/GuiIngameMenu.js b/src/js/net/minecraft/client/gui/screens/GuiIngameMenu.js
index e34f646..61cee71 100644
--- a/src/js/net/minecraft/client/gui/screens/GuiIngameMenu.js
+++ b/src/js/net/minecraft/client/gui/screens/GuiIngameMenu.js
@@ -11,6 +11,10 @@ window.GuiIngameMenu = class extends GuiScreen {
         this.buttonList.push(new GuiButton("Back to game", this.width / 2 - 100, this.height / 2 - 20, 200, 20, function () {
             scope.minecraft.displayScreen(null);
         }));
+
+        this.buttonList.push(new GuiButton("Controls...", this.width / 2 - 100, this.height / 2 + 20, 200, 20, function () {
+            scope.minecraft.displayScreen(new GuiControls(scope));
+        }));
     }
 
     drawScreen(stack, mouseX, mouseY, partialTicks) {
diff --git a/src/js/net/minecraft/client/gui/widgets/GuiButton.js b/src/js/net/minecraft/client/gui/widgets/GuiButton.js
index 6f89c12..237f7d6 100644
--- a/src/js/net/minecraft/client/gui/widgets/GuiButton.js
+++ b/src/js/net/minecraft/client/gui/widgets/GuiButton.js
@@ -19,10 +19,18 @@ window.GuiButton = class extends Gui {
         this.drawCenteredString(stack, this.string, this.x + this.width / 2, this.y + this.height / 2 - 5);
     }
 
-    mouseClicked(mouseX, mouseY, mouseButton) {
+    onPress() {
         this.callback();
     }
 
+    mouseClicked(mouseX, mouseY, mouseButton) {
+        this.onPress();
+    }
+
+    keyTyped(key) {
+
+    }
+
     isMouseOver(mouseX, mouseY) {
         return mouseX > this.x && mouseX < this.x + this.width && mouseY > this.y && mouseY < this.y + this.height;
     }
diff --git a/src/js/net/minecraft/client/gui/widgets/GuiKeyButton.js b/src/js/net/minecraft/client/gui/widgets/GuiKeyButton.js
new file mode 100644
index 0000000..d425927
--- /dev/null
+++ b/src/js/net/minecraft/client/gui/widgets/GuiKeyButton.js
@@ -0,0 +1,21 @@
+window.GuiKeyButton = class extends GuiButton {
+
+    constructor(name, key, x, y, width, height, callback) {
+        super(name + ": " + key, x, y, width, height, _ => callback(this.key));
+        this.listening = false;
+    }
+
+    onPress() {
+        this.listening = true;
+        this.string = "...";
+    }
+
+    keyTyped(key) {
+        if (this.listening) {
+            this.string = name + ": " + key;
+            this.listening = false;
+            this.key = key;
+            this.callback();
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/start.js b/src/start.js
index e140cac..c744ea3 100644
--- a/src/start.js
+++ b/src/start.js
@@ -62,8 +62,10 @@ loadScripts([
     "src/js/net/minecraft/client/gui/Gui.js",
     "src/js/net/minecraft/client/gui/GuiScreen.js",
     "src/js/net/minecraft/client/gui/widgets/GuiButton.js",
+    "src/js/net/minecraft/client/gui/widgets/GuiKeyButton.js",
     "src/js/net/minecraft/client/gui/IngameOverlay.js",
     "src/js/net/minecraft/client/gui/screens/GuiLoadingScreen.js",
+    "src/js/net/minecraft/client/gui/screens/GuiControls.js",
     "src/js/net/minecraft/client/gui/screens/GuiIngameMenu.js",
     "src/js/net/minecraft/client/GameWindow.js",
     "src/js/net/minecraft/client/world/block/Block.js",
@@ -84,6 +86,7 @@ loadScripts([
     "src/js/net/minecraft/client/world/generator/WorldGenerator.js",
     "src/js/net/minecraft/client/entity/Player.js",
     "src/js/net/minecraft/client/inventory/Inventory.js",
+    "src/js/net/minecraft/client/GameSettings.js",
     "src/js/net/minecraft/client/Minecraft.js",
     "src/js/net/minecraft/client/render/isometric/IsometricRenderer.js",
     "src/js/net/minecraft/client/render/isometric/Point.js",