right just enough people have asked my how to turtle to make me just post it here.
Turtleing allows you to contract your head into your torso, after which you can spring out of again

This is for aikido

Turn 1 = +10 frames
lower shoulders
extend glutes
contract abs
*extend wrists (this will allow you to balance for longer)

Turn 2 = +20 frames
Contract pecs
contract hips
Grabby hands

Turn 3 = +20 frames
Raise shoulders

Have fun...
Here is the replay where I did it for the very first time
Turtle Replay