Demo Settings
Hold C
Lower Shoulders
Extend Right Pec
Contract Left Pec
Right Rotating Chest
Extend Abs

Space x1
Shift + Space x4

Raise Left Shoulder
Grab Left Hand

Space x2

Contract Left Elbow
Raise Right Shoulder
Press P

Some possible variations:
If you shift space 5 times instead of four, your forearm will break off, too, and said hand will fly towards the lower half of his body for a possible good beating.
If you space 2 times and shift space 2 times in the same place, you'll break off both of his arms, but you'll have to do some more damage to win.

Woot,thats nice!

My performance of the move following the 'break both arms' variant.