Hi One last word about this. If you add public override function update () {...} in your Scene object, then it is Super important to use super.update () in that function. Missed this in the beginning when I started a bunch of tests regarding this. That's why I didn't get the sprite.play ("...") to work! The same is also true for when you override render () function, add super.render () at the beginning of the function. Has also stumbled on that mistake! Bye!