Hello Unity Community, for my Unity 5 2D game I have a character, which consists of multiple components (sprites). For each hand it has separate collider (as trigger). On my parent object of the character I have a rigidbody2d + another large collider (trigger) to detect there is a "danger" near. As far as I understand (after couple of hours reading through forum threads), I understood that for a collider to work as it should and to not loose performance, a rigidbody should be also attached to it. What I didn't found anywhere is: does that include also child objects?? Do I have to attach also rigidbodies to the hands of my character for colliders to work consistently without performance lost? Thanks for any response!