You can all stop arguing now...

[dspyrido]

Taijiujitsuchi or maybe jiutaichijitsu or taibjjchi... on a fitness ball. At the very least they seem to be having a fun time.

[wayne hansen]

I like it but the hand movements are not linked to the body moves
He could halve the arm moves

[Wanderingdragon]

Looks like decent work for spacial orientation, for such times in a fight as the ground may be taken out from under you, but as has been stated the upper body and hands and arms are really just flailing, with no connection or intent.

[wiesiek]

get the ball and have to do something with it on fly ,
he connect feet with hips only while waving his hands in the very martial way....