After World 8
Original title: Super Mario Bros.
Platform: Nintendo Entertainment System
Region: USA (Update Hacks)
Media: Cartridge
Controller: NES Gamepad
Genre: Platformer 
Gametype: Hack
Release Year: 2006
Hacked by: insectduel
Version: 1.0
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This is the hack of SMB1 with all new levels and the new World A of this game. This is for SMB champions who have already completed World 8 in the original SMB1.

http://www.romhacking.net/hacks/178/