Fall into base and pry the opponent's arms open to release the pressure. Step around to his back, hold his legs, and sit down to take the opponent down. If an adversary attempts something like this bearhug on you, chances are they are much bigger and stronger. Since you won't be able to just free yourself conventionally, using strength or speed, you will have to rely on lowering your center to weaken his control and catch him off guard. Step behind his base, grabbing onto both of his knees, and pick him up off of the ground for a move similar to a 'Sidewalk Slam'.