thank you all. i'm happily surprised how many comments i have found. thanks.
this is my first approach to the fascinating muscles world. i have seen the way as heyvern works and it's incredible (lamentably, i haven't understood well many of his tips, because his english is particularly complex...).
J. baker, that's truth!, the audio works fine.

i'm not sure if the monster can say any word, i'm not good with lipsync and i haven't played too much with it.
gnaws, position control bone can be used to more complex movements, try to give another values, as 0.3, 0.1, 8, -8, -1000, or whatever. you can have several bones controlled by the same bone, but with different values each, so when you move the control bone, all them will move in different ways.
remember the bones you want be control must have name, in this case i named them -after a hard brain storming- "1" and "2".
ulrik, lamentably i haven't too much time to develop an story, since i got a job my sleep time have been reduced to a few hours. this, more the fact that my brain is absolutely dry now and my hand is broken (ill?)...
but you can be sure that i will post some work soon. relatively soon.
dekka, the mouth bones can't be moved its self. they depends of the control bones. when you move, scale or turn the control control, they will react.
thank you all for the nice messages. and, please, lets play with the control bones, it's really fun and opens a lot of possibilities.