diff --git a/web/main.dart b/web/main.dart
index 62afe2e..21580bb 100644
--- a/web/main.dart
+++ b/web/main.dart
@@ -114,7 +114,8 @@ void activate(MouseEvent e) {
 }
 
 void addControls(Example ex) {
-  querySelector(ex.query).append(new DivElement()
+  DivElement group = new DivElement();
+  querySelector(ex.query).append(group
     ..append(new ButtonElement()
       ..text = "Start"
       ..onClick.listen((e) {
@@ -126,6 +127,23 @@ void addControls(Example ex) {
       ..onClick.listen((e) {
         ex.loop.stop();
       })));
+
+  // Don't add controls which don't work anyways (for simple examples)
+  if(examples.indexOf(ex) <= 1) return;
+
+  group
+    ..append(new LabelElement()
+      ..htmlFor = "update_speed"
+      ..innerHtml = "Updates per Second:")
+    ..append(new InputElement(type: "range")
+      ..id = "update_speed"
+      ..min = "1"
+      ..max = "20"
+      ..value = "3"
+      ..step = "1"
+    ..onInput.listen((Event e) {
+      ex.loop;
+    }));
   //    querySelector('#reset').onClick.listen((e) => ex.loop.game.reset());
 //    querySelector('#plus').onClick.listen((e) => _changeGrid(-5));
 //    querySelector('#minus').onClick.listen((e) => _changeGrid(5));