I did the bouncing test to see if I could make it seem like the stage was containing a thrown object. You can grab the box with the mouse and throw it to see it bounce around.

When I completed the bouncing test I decided to see if I could make it seem like the box was reappearing on the other side of the stage, like in some of the old school video games. I played around with a number of different effects, changing how visible the block should be before it wrapped and even trying to make it appear on the other side before it completely left the screen. None of the effects looked quite right except this one, the block completely leaves the stage before appearing on the other side, which works out well since it's also the easiest solution. The same interaction works here, you can grab the box with the mouse and throw it to see it wrap.