diff --git a/CHANGELOG.md b/CHANGELOG.md
index e21993696..9d5b8702c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,8 @@
 # CHANGELOG
 
 ## [next]
- - Adding method to load image bases on base64 data url.
+- Adding method to load image bases on base64 data url.
+- Fix Box2DGame to follow render priority
 
 ## 0.20.0
 - Refactor game.dart classes into separate files
diff --git a/doc/examples/box2d/lib/main.dart b/doc/examples/box2d/lib/main.dart
index fb4760c92..5f5673a9a 100644
--- a/doc/examples/box2d/lib/main.dart
+++ b/doc/examples/box2d/lib/main.dart
@@ -7,6 +7,7 @@ import 'package:flutter/material.dart';
 import 'package:box2d_flame/box2d.dart';
 
 void main() async {
+  WidgetsFlutterBinding.ensureInitialized();
   await Flame.util.fullScreen();
   runApp(GameController().widget);
 }
@@ -19,8 +20,8 @@ class MyPlanet extends BodyComponent {
   // After 20 seconds the circle will be removed, to show that we don't get
   // any concurrent modification exceptions.
   MyPlanet(Box2DComponent box) : super(box) {
-    Vector2 leftCorner = viewport.getScreenToWorld(Vector2.zero());
-    _createBody(50.0, leftCorner);
+    Vector2 center = viewport.getScreenToWorld(viewport.center);
+    _createBody(50.0, center);
   }
 
   void _createBody(double radius, Vector2 position) {
@@ -40,8 +41,7 @@ class MyPlanet extends BodyComponent {
     bodyDef.angularVelocity = 4.0;
     bodyDef.type = BodyType.DYNAMIC;
 
-    this.body = world.createBody(bodyDef)
-      ..createFixtureFromFixtureDef(fixtureDef);
+    body = world.createBody(bodyDef)..createFixtureFromFixtureDef(fixtureDef);
   }
 
   @override
diff --git a/lib/box2d/box2d_game.dart b/lib/box2d/box2d_game.dart
index 04d620b09..16014fa07 100644
--- a/lib/box2d/box2d_game.dart
+++ b/lib/box2d/box2d_game.dart
@@ -8,7 +8,9 @@ class Box2DGame extends BaseGame {
   final Box2DComponent box;
   final List<BodyComponent> _addLater = [];
 
-  Box2DGame(this.box) : super();
+  Box2DGame(this.box) : super() {
+    add(box);
+  }
 
   @override
   void add(Component c) {
@@ -31,7 +33,6 @@ class Box2DGame extends BaseGame {
   @override
   void update(double t) {
     super.update(t);
-    box.update(t);
     box.components
         .where((c) => c.destroy())
         .toList()
@@ -39,10 +40,4 @@ class Box2DGame extends BaseGame {
     box.addAll(_addLater);
     _addLater.clear();
   }
-
-  @override
-  void render(Canvas c) {
-    super.render(c);
-    box.render(c);
-  }
 }