Title says it all. This hack let's you play as Luigi as the first player. Enjoy!
NOTE: The classic version's patch is added as well.
Mario Bros. (E) [!].nes
ROM MD5: EBE4E0B2BB6194BB3CED8B23B38C896B
ROM SHA-1: 1760FF410B7EC5A4540E9844686EE91932EAA1AD
ROM CRC32: 2BF0F9C5
Mario Bros. Classic (Europe).nes
ROM MD5: FAD7CE18AAFD8DA059B19C28E3376569
ROM SHA-1: DBD1BF833A9D89A9AC41CCCED0FB508074A489D1
ROM CRC32: A1C0DA00