8 all new levels with a good amount of difficulty. Shyguys and crabs have been added to the game along with a few other graphic changes.
This hack is for the Super Mario Bros. (JU)(PRG0) [!].nes ROM .
GoodNES: Super Mario Bros (JU)(PRG0)[!].nes
No-Intro Name: Super Mario Bros. (World)
(No-Intro version 20130731-235630)
File SHA-1: EA343F4E445A9050D4B4FBAC2C77D0693B1D0922
ROM SHA-1: FACEE9C577A5262DBE33AC4930BB0B58C8C037F7