FNF: Iron Lung Home FNF: Iron Lung 0.0 / 5 ( 0 votes ) Your Rating? Discover FNF: Iron Lung – Play Free Now on YourGame! FNF: Iron Lung is an epic rap battle game with a new opponent. This is one of the best mods for Friday Night Funkin' that you should try. Test your reflexes so you don't lose in this rap battle game. Join and play the FNF: Iron Lung game at RegionGame now and have fun. Categories in which FNF: Iron Lung is included: Car Dress Up 1 Player