The Lying Down Game doesn't require the skill parkour does. In fact, it doesn't require any skill at all, which means anyone and their grandma can do it. Founded in the UK, The Lying Down Game is described as "Parkour...for those who cant be arsed". The rules are simple:

1) The more public the better.

2) The more people involved the better.

Please be aware that the palms of your hands must be flat against your side and the tips of your toes pointing at the ground. Just as if you were standing, but vertically challenged. FACE DOWN!

Here's some inspiration to get you started: