Super Mario Bros. 2 Challenge
Original title: Super Mario Bros. 2
Platform: Nintendo Entertainment System
Region: USA (Update Hacks)
Media: Cartridge
Controller: NES Gamepad
Genre: Platformer 
Gametype: Hack
Players: 1
Hacked by: Challenge Games
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The Super Mario Bros. 2 Challenge is a remake of the classic NES game. The main feature of this game, like the title suggests, is that it is much more challenging.

http://www.derok.net/roms/games/super-mario-bros.-2-roms.html