14. In an interactive method for animating a character figure in a video image memory responsive to stored motion data, said character figure being represented in said memory as having a first plurality of joints and a plurality of links coupled between respective pairs of said first plurality of joints, said plurality of links representing respect limbs of said character figure, said method further responsive to an input goal to animate said character subject to at least one constraint, wherein said interactive method for animating said character figure has at least one adjustable motion parameter, a method for adjusting said adjustable motion parameter in accordance with said stored data, said method comprising: calculating stored motion joint angle commands from said stored motion data; determining a stored input goal from said stored motion data; generating interactive motion data using said stored input goal in said interactive method, wherein said interactive method uses at least one synergy, wherein a synergy is a process which produces a set of interactive joint angle movements subject to said constraint, which interactive joint angle movements attempt to satisfy said stored input goal; calculating the error between said stored motion joint angle commands and said interactive joint angle commands; comparing said error to a predetermined error value; and modifying at least one parameter of said interactive method if said error is greater than said predetermined error value; whereby said parameter of said interactive method is adjusted in accordance with said stored motion data.
16. A method in accordance with claim 14, wherein said adjustable parameter is a synergy strength.