Some legends say that serpents never die, they merely grow wiser and more cunning as they age. With no arms or legs to use, they truly need to be careful with their prey -- as is the cobra, which strikes at the back of its victim's neck. So, too, does this skill. By flipping forwards and using careful timing, you can use the hard heel of your foot to whip around, like a striking snake, with as much speed and power as you can. Done correctly, your foe will not only be injured, but hopefully unable to counter this acrobatic move by striking back.