When I played Mirror's Edge, I figured it could be neat if holding down (not toggle) each face button gave you a specific alternate angle from your first person view. That's roughly how it is when riding a mountain bike. You get your limited glance backwards from the top, and your jilted to all shit glance under your armpit each side. And you can't feel your feet for shit, only your general balance and where the wheel is. People often complain that first-person platformers can't work because you can't see around, but it's more about not having the time to scroll around your FOV. In reality a human doesn't really scroll and meander the way we usually control FPS vision. You jilt your head into one of the positions you've trained to orientate into.