A simple player sprite hack which changes Mario and Luigi to their versions found in the Mario Bros. minigame from Super Mario Bros. 3 (playable in 2-player game mode only).
The patch is in Xdelta format.
No-Intro Name: Mario Bros. (World)
(No-Intro version 20130731-235630)
File SHA-1: 9286A2DB471D51713E9B75E68B47FFBF11E2D40B
ROM SHA-1: BF43D93D36D7198E65B9B7C4E41DB108FE43FCBA