 "Mario Bros." was created by Shigeru Miyamoto and Gunpei Yokoi, two of the lead developers for the video game "Donkey Kong".In "Donkey Kong", Mario dies if he falls too far.For "Mario Bros.", Yokoi suggested to Miyamoto that Mario should be able to fall from any height, which Miyamoto was not sure of, thinking that it would make it "not much of a game."