Mega Man C4
Original title: Mega Man IV
Platform: Nintendo Entertainment System
Region: USA (Update Hacks)
Media: Cartridge
Controller: NES Gamepad
Genre: Platformer 
Gametype: Hack
Release Year: 2008
Players: 1
Hacked by: L.Soft Hacks
Version: 1.0
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This is a redone version of Mega Man 4. All levels have been re-designed

http://www.romhacking.net/hacks/417/