Super Bovine Battle: Search for Milk
Original title: Recca
Platform: Nintendo Entertainment System
Region: USA (Update Hacks)
Media: Cartridge
Controller: NES Gamepad
Genre: Platformer 
Gametype: Hack
Release Year: 2001
Hacked by: DarkKnight13
Version: 1.0
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Your mission, is to kill the other farm animals who hold your infinite supply of chocolate milk hostage! Yeah I know the story is silly, sue me.

This is a complete graphics hack of Mario Bros. that might seem to a lot of people as a lost hack. So yeah try it out, it's a nice change of pace of the very few Mario Bros. hacks out there. :)

http://www.romhacking.net/hacks/468/