IF YOU ARE ON A BIG SCREEN (pc, laptop, tv) DO NOT FULLSCREEN THE PROJECT OR THE ILLUSION WONT WORK! Turn your camera on and move around. Stay around 1 hand away from the screen at all times and take max 1 step back. Try moving: Forward Back Left And right
The idea came from an 18 year old YouTube video on AR tracking through the Wii by jcl5m. The execution isn't as great because of the limited zoom on scratch and the imprecise pixel placement.