i got something useable(kinda)
i made a motor joint between the torso and an invisible helper object that has fixed rotation. If he is grounded, activate the angular offset torque, and apply torque to his righ leg on way, the left the other, and if it exceeds a certain angle, reverse it, meanwhile add a force to the torso in the desired direction. the self balancing isnt perfect, but it suits my goals.
to play the included game, just left click and right click to fire webs, double tap either to shoot
edit: still needs work, imma add walking up walls