diff --git a/src/mixins/GameEnvironmentMixin.js b/src/mixins/GameEnvironmentMixin.js
index a0faaea..acb3296 100644
--- a/src/mixins/GameEnvironmentMixin.js
+++ b/src/mixins/GameEnvironmentMixin.js
@@ -32,6 +32,7 @@ export default {
 
     unmounted(){
         window.removeEventListener('resize', this.resize);
+        gameEngine.clearScene();
         gameEngine.stop();
     },
 
@@ -143,7 +144,7 @@ export default {
                     env.scene.traverse(o=>{
                         if (o.name == 'Sphere'){
                             console.log('Fixing ground. TODO!!!')
-                            gameEngine.physics.add(o, 'fixed', true, undefined) 
+                            gameEngine.physics.add(o, 'fixed', true, undefined, 'mesh', { root: env.scene}) 
                         }
                     })
                 }
@@ -223,6 +224,7 @@ export default {
             }
 
             gameEngine.dashboard?.loading(1)
+            gameEngine.physics.start();
         },
         
         targetPointerDown(){