super mario bros will not play past 0-1 level what do i do to fix it

[twister431]

mario bros. 1 starts off in the underworld . whats the trick to make it work

[Jale]

That's a hacked version of the game. You should get the original one.

[montpics]

That's a hacked version of the game. You should get the original one.

Bingo! Butters is right about that one. Try to grab the correct one.

[twister431]

i know u cannot give links but can anyone point me in the right direction for a clean version of super mario bros 1

[hagbard]

Well, all I can post it's the GoodNes names for the correct versions, then google might do the rest :

Super Mario Bros. (E) -> PAL euro version
Super Mario Bros. (JU) (PRG0) [!] -> verified NTSC J/USA dump
Super Mario Bros. (JU) (PRG1) -> alternate mapper NTSC J/USA dump
Super Mario Bros. (PC10) -> PlayChoice 10 arcade version

It' also available on FDS (Famicom Disc System), but should be harder to find and not different, appart for (annoying) "change side"