Enter The Gungeon 4th Floor Empty Room

I ve managed to figure out the minecart puzzle on level 3 but this one on level 4 is stumping me. Big empty rooms on the third floor and fourth floor i m rather new to gungeon i picked it up because it was reccommended since i had the binding of isaac so i dont know much yet. From searching another topic it looks like there s an invisible bridge but i can t seem to find rhyme or reason to where it s supposed to be.

energy solutions melbourne phone calls energy management companies uk energy australia service works request form energy field healing therapy energy healing conference st george utah energy on concrete flooring entertainment tonight red carpet 2017 energy control systems pittsburgh pa epoxy wood siding emotional support dog apply enter the f8 red carpet sweepstakes by february 26 2017 englert leaf guard gutters cost engineered timber flooring over tiles engineered wood flooring vs carpet cost engineered wood siding vs wood siding entergy texas electric company epoxy resin vs vinyl ester energy fitness klub saska kepa energy work boston engineered wood flooring minimum thickness